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IronPDF vs PDFSharpCore: Którą bibliotekę PDF .NET powinieneś wybrać w 2025?

When developing modern .NET applications that require PDF generation and manipulation capabilities, choosing the right library can significantly impact your project's success. Two prominent options in the .NET ecosystem are IronPDF and PDFSharpCore, each offering distinct approaches to PDF handling. This comprehensive comparison will help you make an informed decision based on your specific requirements, budget, and technical needs.

Szybki przegląd porównawczy

Before diving into the technical details, here's a comprehensive comparison table that summarizes the key differences betweenIronPDFand PDFSharpCore:

Przegląd porównania produktów
Comparison ofIronPDFand PDFSharpCore for .NET PDF Processing
Kategoria Funkcja/Aspekt IronPDF PDFSharpCore Kluczowa zaleta
Podstawowa architektura Design Philosophy Chrome-based rendering, intuitive APIs Lightweight, manual PDF construction IronPDF: Faster development
API Complexity Simple methods like RenderHtmlAsPdf() Manual drawing with XGraphics IronPDF: 70% less code
Krzywa uczenia się Zazwyczaj 1–2 dni 3-5 days typical IronPDF: Quicker adoption
Obsługa platform Wieloplatformowe Wbudowana obsługa, bez dodatkowych pakietów Full cross-platform support Both: Modern deployment
Wersje .NET .NET 10, 9, 8, 7, 6, 5, Core 3.1+, Framework 4.6.2+ .NET 6+, .NET Standard 2.0 IronPDF: Broader compatibility
Systemy operacyjne Windows, Linux, macOS, Docker, Azure, AWS Windows, Linux, macOS IronPDF: Cloud-optimized
HTML do PDF Silnik renderujący Pełny silnik Chrome V8 No native HTML support IronPDF: HTML capability
Obsługa CSS3/HTML5 Pełne wsparcie Requires third-party libraries IronPDF: Nowoczesne standardy internetowe
Wykonanie JavaScript Pełna obsługa JavaScript Nie dotyczy IronPDF: Dynamiczna treść
Core Features Wyodrębnianie tekstu Built-in ExtractAllText() Ograniczone wsparcie IronPDF: Superior extraction
Znak wodny Oparty na HTML/CSS, pełna stylizacja Manual drawing required IronPDF: Bogate znaki wodne
Podpisy cyfrowe Integrated, visual signatures Not supported IronPDF: Enterprise security
Szyfrowanie AES-256, niestandardowe procedury obsługi Basic encryption support IronPDF: Advanced security
Nagłówki/stopki HTML-based, dynamic content Manual positioning IronPDF: Dynamic headers
Wydajność Szybkość renderowania HTML 0.8-2s typical (Chrome engine) Nie dotyczy IronPDF: HTML rendering
Przetwarzanie dużych dokumentów Optimized for scale Memory efficient PDFSharpCore: Lower memory
Obsługa wątków Native async/await, parallel processing Operacje bezpieczne dla wątków IronPDF: Lepsza skalowalność
Doświadczenie programisty Dokumentacja Extensive tutorials, API docs, videos Basic documentation IronPDF: Better resources
Przykłady kodu 100+ ready-to-run samples Community examples IronPDF: Extensive samples
IntelliSense Wsparcie Full IntelliSense, XML docs Standard IntelliSense Both: IDE integration
Licensing & Pricing Typ licencji Commercial, perpetual MIT License (Darmowy) PDFSharpCore: Nie cost
Cena wywoławcza Lite: $799 (1 dev, 1 project) Darmowy PDFSharpCore: Zero cost
Wsparcie 24/5 engineering support included Community support only IronPDF: Professional support
Najlepsze dla Przykłady zastosowań Web apps, reports, enterprise Simple PDFs, budget projects Context-dependent
Note. PDFSharpCore is an open-source library suitable for basic PDF creation, whileIronPDFoffers comprehensive features including HTML rendering and enterprise support. The choice depends on project complexity and budget constraints.

Introduction toIronPDFand PDFSharpCore

Czym jest IronPDF?

IronPDF is a comprehensive commercial .NET library designed to make PDF generation, editing, and manipulation effortless for developers. Built on a Chrome-based rendering engine, it excels at converting HTML, CSS, and JavaScript content into pixel-perfect PDFs. The library offers an extensive feature set that includes HTML to PDF conversion, digital signatures, watermarking, PDF encryption, and form management.

IronPDF supports modern .NET versions including .NET 10, 9, 8, 7, 6, 5, Core 3.1+, and Framework 4.6.2+, making it versatile for both new and legacy applications. Its cloud-optimized architecture ensures seamless deployment on Azure, AWS, and Docker environments.

What is PDFSharpCore?

PDFSharpCore is an open-source library that serves as a .NET Core port of the original PDFsharp library. Released under the MIT license, it focuses on programmatic PDF creation and basic manipulation without relying on Windows-specific libraries. This makes it an excellent choice for cross-platform projects running on Linux, macOS, and Windows.

While PDFSharpCore doesn't offer native HTML to PDF conversion, it provides precise control over PDF document creation through its drawing API. Developers can manually construct PDF documents by positioning text, images, and graphics using coordinate-based drawing commands.

Instalacja i konfiguracja

Instalacja IronPDF

To start usingIronPDFin your project, you can easily install it via NuGet Package Manager. Postępuj zgodnie z poniższymi wskazówkami:

  1. Otwórz swój projekt w Visual Studio.
  2. Navigate to Tools > NuGet Package Manager > Manage NuGet Packages for Solution.
  3. Search for IronPdf in the NuGet Manager.
  4. Select your project, then click on Install to addIronPDFto your project.

A Comparison BetweenIronPDF& PDFSharpCore: Figure 1 - InstallingIronPDFvia NuGet Package Manager InstallingIronPDFthrough Visual Studio's NuGet Package Manager interface

Alternatively, you can use the Package Manager Console to installIronPDFwith the following command:

Install-Package IronPdf

Installing PDFSharpCore

To install PDFSharpCore using NuGet, follow these instructions:

  1. Ensure your Visual Studio project is open.
  2. Go to Tools > NuGet Package Manager > Manage NuGet Packages for Solution.
  3. In the NuGet Package Manager, search for PDFSharpCore.
  4. Select your project and click Install to incorporate PDFSharpCore.

A Comparison BetweenIronPDF& PDFSharpCore: Figure 2 - Installing PDFSharpCore via NuGet PDFSharpCore installation through the NuGet Package Manager

For developers preferring the Package Manager Console, PDFSharpCore can be installed with this command:

Install-Package PdfSharpCore

Creating PDF Files:IronPDFvs PDFSharpCore

IronPDF: Modern HTML-Based Approach

IronPDF revolutionizes PDF creation by leveraging web technologies that developers already know. Its Chrome-based rendering engine ensures that your HTML, CSS, and JavaScript are rendered exactly as they would appear in a modern browser.

HTML String to PDF with Advanced Features

IronPDF's HTML to PDF conversion capabilities go far beyond simple text rendering. Here's an enhanced example that demonstrates its power:

using IronPdf;
using IronPdf.Rendering;

class Program
{
    static void Main(string[] args)
    {
        // Apply your license key (required for production)
        License.LicenseKey = "Your-License-Key";

        // Create renderer with optimized settings
        var renderer = new ChromePdfRenderer()
        {
            RenderingOptions = new ChromePdfRenderOptions()
            {
                // Set margins for professional appearance
                MarginTop = 25,
                MarginBottom = 25,
                MarginLeft = 20,
                MarginRight = 20,

                // Enable JavaScript execution for dynamic content
                EnableJavaScript = true,

                // Wait for AJAX/animations to complete
                RenderDelay = 500,

                // Set paper orientation and size
                PaperOrientation = PdfPaperOrientation.Portrait,
                PaperSize = PdfPaperSize.A4,

                // Enable printing of background colors and images
                PrintHtmlBackgrounds = true
            }
        };

        // HTML with Bootstrap styling and charts
        string htmlContent = @"
            <!DOCTYPE html>
            <html>
            <head>
                <link href='https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css' rel='stylesheet'>
                <script src='https://cdn.jsdelivr.net/npm/chart.js'></script>
                <style>
                    body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
                    .header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px; }
                    .chart-container { width: 100%; height: 300px; margin: 20px 0; }
                </style>
            </head>
            <body>
                <div class='header text-center'>
                    <h1>2024 Sales Performance Report</h1>
                    <p class='lead'>Comprehensive Analysis & Insights</p>
                </div>

                <div class='container mt-4'>
                    <div class='row'>
                        <div class='col-md-6'>
                            <div class='card'>
                                <div class='card-body'>
                                    <h5 class='card-title'>Q1 Performance Metrics</h5>
                                    <table class='table table-striped'>
                                        <thead>
                                            <tr>
                                                <th>Month</th>
                                                <th>Revenue</th>
                                                <th>Growth</th>
                                            </tr>
                                        </thead>
                                        <tbody>
                                            <tr>
                                                <td>January</td>
                                                <td>$50,000</td>
                                                <td><span class='badge bg-success'>+12%</span></td>
                                            </tr>
                                            <tr>
                                                <td>February</td>
                                                <td>$55,000</td>
                                                <td><span class='badge bg-success'>+10%</span></td>
                                            </tr>
                                            <tr>
                                                <td>March</td>
                                                <td>$60,000</td>
                                                <td><span class='badge bg-success'>+9%</span></td>
                                            </tr>
                                        </tbody>
                                    </table>
                                </div>
                            </div>
                        </div>
                        <div class='col-md-6'>
                            <div class='card'>
                                <div class='card-body'>
                                    <h5 class='card-title'>Revenue Trend</h5>
                                    <canvas id='revenueChart'></canvas>
                                </div>
                            </div>
                        </div>
                    </div>

                    <div class='alert alert-info mt-4'>
                        <strong>Key Insight:</strong> Q1 showed consistent growth across all months, 
                        with total revenue reaching $165,000, representing a 31% increase YoY.
                    </div>
                </div>

                <script>
                    // Create an interactive chart
                    const ctx = document.getElementById('revenueChart').getContext('2d');
                    new Chart(ctx, {
                        type: 'line',
                        data: {
                            labels: ['January', 'February', 'March'],
                            datasets: [{
                                label: 'Revenue',
                                data: [50000, 55000, 60000],
                                borderColor: '#667eea',
                                backgroundColor: 'rgba(102, 126, 234, 0.1)',
                                tension: 0.4
                            }]
                        },
                        options: {
                            responsive: true,
                            maintainAspectRatio: false
                        }
                    });
                </script>
            </body>
            </html>";

        // Render the HTML to PDF
        var pdf = renderer.RenderHtmlAsPdf(htmlContent);

        // Add metadata for better document management
        pdf.MetaData.Author = "Sales Department";
        pdf.MetaData.Title = "Q1 2024 Sales Report";
        pdf.MetaData.Subject = "Quarterly Performance Analysis";
        pdf.MetaData.Keywords = "sales, performance, Q1, 2024";
        pdf.MetaData.CreationDate = DateTime.Now;

        // Save the PDF
        pdf.SaveAs("sales-report-q1-2024.pdf");
        Console.WriteLine("Professional sales report generated successfully!");
    }
}
using IronPdf;
using IronPdf.Rendering;

class Program
{
    static void Main(string[] args)
    {
        // Apply your license key (required for production)
        License.LicenseKey = "Your-License-Key";

        // Create renderer with optimized settings
        var renderer = new ChromePdfRenderer()
        {
            RenderingOptions = new ChromePdfRenderOptions()
            {
                // Set margins for professional appearance
                MarginTop = 25,
                MarginBottom = 25,
                MarginLeft = 20,
                MarginRight = 20,

                // Enable JavaScript execution for dynamic content
                EnableJavaScript = true,

                // Wait for AJAX/animations to complete
                RenderDelay = 500,

                // Set paper orientation and size
                PaperOrientation = PdfPaperOrientation.Portrait,
                PaperSize = PdfPaperSize.A4,

                // Enable printing of background colors and images
                PrintHtmlBackgrounds = true
            }
        };

        // HTML with Bootstrap styling and charts
        string htmlContent = @"
            <!DOCTYPE html>
            <html>
            <head>
                <link href='https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css' rel='stylesheet'>
                <script src='https://cdn.jsdelivr.net/npm/chart.js'></script>
                <style>
                    body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
                    .header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px; }
                    .chart-container { width: 100%; height: 300px; margin: 20px 0; }
                </style>
            </head>
            <body>
                <div class='header text-center'>
                    <h1>2024 Sales Performance Report</h1>
                    <p class='lead'>Comprehensive Analysis & Insights</p>
                </div>

                <div class='container mt-4'>
                    <div class='row'>
                        <div class='col-md-6'>
                            <div class='card'>
                                <div class='card-body'>
                                    <h5 class='card-title'>Q1 Performance Metrics</h5>
                                    <table class='table table-striped'>
                                        <thead>
                                            <tr>
                                                <th>Month</th>
                                                <th>Revenue</th>
                                                <th>Growth</th>
                                            </tr>
                                        </thead>
                                        <tbody>
                                            <tr>
                                                <td>January</td>
                                                <td>$50,000</td>
                                                <td><span class='badge bg-success'>+12%</span></td>
                                            </tr>
                                            <tr>
                                                <td>February</td>
                                                <td>$55,000</td>
                                                <td><span class='badge bg-success'>+10%</span></td>
                                            </tr>
                                            <tr>
                                                <td>March</td>
                                                <td>$60,000</td>
                                                <td><span class='badge bg-success'>+9%</span></td>
                                            </tr>
                                        </tbody>
                                    </table>
                                </div>
                            </div>
                        </div>
                        <div class='col-md-6'>
                            <div class='card'>
                                <div class='card-body'>
                                    <h5 class='card-title'>Revenue Trend</h5>
                                    <canvas id='revenueChart'></canvas>
                                </div>
                            </div>
                        </div>
                    </div>

                    <div class='alert alert-info mt-4'>
                        <strong>Key Insight:</strong> Q1 showed consistent growth across all months, 
                        with total revenue reaching $165,000, representing a 31% increase YoY.
                    </div>
                </div>

                <script>
                    // Create an interactive chart
                    const ctx = document.getElementById('revenueChart').getContext('2d');
                    new Chart(ctx, {
                        type: 'line',
                        data: {
                            labels: ['January', 'February', 'March'],
                            datasets: [{
                                label: 'Revenue',
                                data: [50000, 55000, 60000],
                                borderColor: '#667eea',
                                backgroundColor: 'rgba(102, 126, 234, 0.1)',
                                tension: 0.4
                            }]
                        },
                        options: {
                            responsive: true,
                            maintainAspectRatio: false
                        }
                    });
                </script>
            </body>
            </html>";

        // Render the HTML to PDF
        var pdf = renderer.RenderHtmlAsPdf(htmlContent);

        // Add metadata for better document management
        pdf.MetaData.Author = "Sales Department";
        pdf.MetaData.Title = "Q1 2024 Sales Report";
        pdf.MetaData.Subject = "Quarterly Performance Analysis";
        pdf.MetaData.Keywords = "sales, performance, Q1, 2024";
        pdf.MetaData.CreationDate = DateTime.Now;

        // Save the PDF
        pdf.SaveAs("sales-report-q1-2024.pdf");
        Console.WriteLine("Professional sales report generated successfully!");
    }
}
Imports IronPdf
Imports IronPdf.Rendering

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Apply your license key (required for production)
		License.LicenseKey = "Your-License-Key"

		' Create renderer with optimized settings
		Dim renderer = New ChromePdfRenderer() With {
			.RenderingOptions = New ChromePdfRenderOptions() With {
				.MarginTop = 25,
				.MarginBottom = 25,
				.MarginLeft = 20,
				.MarginRight = 20,
				.EnableJavaScript = True,
				.RenderDelay = 500,
				.PaperOrientation = PdfPaperOrientation.Portrait,
				.PaperSize = PdfPaperSize.A4,
				.PrintHtmlBackgrounds = True
			}
		}

		' HTML with Bootstrap styling and charts
		Dim htmlContent As String = "
            <!DOCTYPE html>
            <html>
            <head>
                <link href='https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css' rel='stylesheet'>
                <script src='https://cdn.jsdelivr.net/npm/chart.js'></script>
                <style>
                    body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }
                    .header { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; padding: 30px; }
                    .chart-container { width: 100%; height: 300px; margin: 20px 0; }
                </style>
            </head>
            <body>
                <div class='header text-center'>
                    <h1>2024 Sales Performance Report</h1>
                    <p class='lead'>Comprehensive Analysis & Insights</p>
                </div>

                <div class='container mt-4'>
                    <div class='row'>
                        <div class='col-md-6'>
                            <div class='card'>
                                <div class='card-body'>
                                    <h5 class='card-title'>Q1 Performance Metrics</h5>
                                    <table class='table table-striped'>
                                        <thead>
                                            <tr>
                                                <th>Month</th>
                                                <th>Revenue</th>
                                                <th>Growth</th>
                                            </tr>
                                        </thead>
                                        <tbody>
                                            <tr>
                                                <td>January</td>
                                                <td>$50,000</td>
                                                <td><span class='badge bg-success'>+12%</span></td>
                                            </tr>
                                            <tr>
                                                <td>February</td>
                                                <td>$55,000</td>
                                                <td><span class='badge bg-success'>+10%</span></td>
                                            </tr>
                                            <tr>
                                                <td>March</td>
                                                <td>$60,000</td>
                                                <td><span class='badge bg-success'>+9%</span></td>
                                            </tr>
                                        </tbody>
                                    </table>
                                </div>
                            </div>
                        </div>
                        <div class='col-md-6'>
                            <div class='card'>
                                <div class='card-body'>
                                    <h5 class='card-title'>Revenue Trend</h5>
                                    <canvas id='revenueChart'></canvas>
                                </div>
                            </div>
                        </div>
                    </div>

                    <div class='alert alert-info mt-4'>
                        <strong>Key Insight:</strong> Q1 showed consistent growth across all months, 
                        with total revenue reaching $165,000, representing a 31% increase YoY.
                    </div>
                </div>

                <script>
                    // Create an interactive chart
                    const ctx = document.getElementById('revenueChart').getContext('2d');
                    new Chart(ctx, {
                        type: 'line',
                        data: {
                            labels: ['January', 'February', 'March'],
                            datasets: [{
                                label: 'Revenue',
                                data: [50000, 55000, 60000],
                                borderColor: '#667eea',
                                backgroundColor: 'rgba(102, 126, 234, 0.1)',
                                tension: 0.4
                            }]
                        },
                        options: {
                            responsive: true,
                            maintainAspectRatio: false
                        }
                    });
                </script>
            </body>
            </html>"

		' Render the HTML to PDF
		Dim pdf = renderer.RenderHtmlAsPdf(htmlContent)

		' Add metadata for better document management
		pdf.MetaData.Author = "Sales Department"
		pdf.MetaData.Title = "Q1 2024 Sales Report"
		pdf.MetaData.Subject = "Quarterly Performance Analysis"
		pdf.MetaData.Keywords = "sales, performance, Q1, 2024"
		pdf.MetaData.CreationDate = DateTime.Now

		' Save the PDF
		pdf.SaveAs("sales-report-q1-2024.pdf")
		Console.WriteLine("Professional sales report generated successfully!")
	End Sub
End Class
$vbLabelText   $csharpLabel

This example showcases several advanced features of IronPDF:

  • Bootstrap Integration: Leverages popular CSS frameworks for professional styling
  • JavaScript Charts: Renders dynamic Chart.js visualizations in the PDF
  • Responsive Design: Handles responsive layouts intelligently
  • Metadata Management: Adds searchable metadata for document management systems
  • Render Delays: Ensures JavaScript content loads completely before rendering

The ChromePdfRenderer class provides extensive control over the rendering process. Key options include:

  • EnableJavaScript: Executes JavaScript code before rendering
  • RenderDelay: Waits for asynchronous content to load
  • PrintHtmlBackgrounds: Preserves background colors and images
  • PaperOrientation and PaperSize: Controls page layout
  • Margin settings for professional document appearance

Converting HTML Files and URLs

IronPDF also excels at converting existing HTML files and live web pages:

using IronPdf;

class Program
{
    static async Task Main(string[] args)
    {
        License.LicenseKey = "Your-License-Key";

        var renderer = new ChromePdfRenderer();

        // Convert a local HTML file with external resources
        var filePdf = renderer.RenderHtmlFileAsPdf(@"C:\Reports\template.html");
        filePdf.SaveAs("from-file.pdf");

        // Convert a URL with authentication
        renderer.LoginCredentials = new ChromeHttpLoginCredentials()
        {
            Username = "user@example.com",
            Password = "secure-password"
        };

        // Render a password-protected page
        var urlPdf = await renderer.RenderUrlAsPdfAsync("https://secure.example.com/reports");
        urlPdf.SaveAs("secure-report.pdf");
    }
}
using IronPdf;

class Program
{
    static async Task Main(string[] args)
    {
        License.LicenseKey = "Your-License-Key";

        var renderer = new ChromePdfRenderer();

        // Convert a local HTML file with external resources
        var filePdf = renderer.RenderHtmlFileAsPdf(@"C:\Reports\template.html");
        filePdf.SaveAs("from-file.pdf");

        // Convert a URL with authentication
        renderer.LoginCredentials = new ChromeHttpLoginCredentials()
        {
            Username = "user@example.com",
            Password = "secure-password"
        };

        // Render a password-protected page
        var urlPdf = await renderer.RenderUrlAsPdfAsync("https://secure.example.com/reports");
        urlPdf.SaveAs("secure-report.pdf");
    }
}
Imports IronPdf

Friend Class Program
	Shared Async Function Main(ByVal args() As String) As Task
		License.LicenseKey = "Your-License-Key"

		Dim renderer = New ChromePdfRenderer()

		' Convert a local HTML file with external resources
		Dim filePdf = renderer.RenderHtmlFileAsPdf("C:\Reports\template.html")
		filePdf.SaveAs("from-file.pdf")

		' Convert a URL with authentication
		renderer.LoginCredentials = New ChromeHttpLoginCredentials() With {
			.Username = "user@example.com",
			.Password = "secure-password"
		}

		' Render a password-protected page
		Dim urlPdf = Await renderer.RenderUrlAsPdfAsync("https://secure.example.com/reports")
		urlPdf.SaveAs("secure-report.pdf")
	End Function
End Class
$vbLabelText   $csharpLabel

PDFSharpCore: Manual Document Construction

PDFSharpCore takes a fundamentally different approach, requiring developers to manually construct PDF documents using drawing commands. While this provides precise control, it requires significantly more code for complex layouts.

using PdfSharpCore.Drawing;
using PdfSharpCore.Pdf;
using System;

class Program
{
    static void Main()
    {
        // Create a new PDF document
        var document = new PdfDocument();
        document.Info.Title = "Sales Report Q1 2024";
        document.Info.Author = "Sales Department";

        // Add a page
        var page = document.AddPage();
        page.Size = PdfSharpCore.PageSize.A4;

        // Create graphics object for drawing
        var gfx = XGraphics.FromPdfPage(page);

        // Define fonts
        var titleFont = new XFont("Arial", 24, XFontStyle.Bold);
        var headingFont = new XFont("Arial", 14, XFontStyle.Bold);
        var normalFont = new XFont("Arial", 11, XFontStyle.Regular);

        // Draw title with gradient-like effect (manual implementation)
        var titleBrush = new XLinearGradientBrush(
            new XPoint(0, 0), 
            new XPoint(page.Width, 0),
            XColors.DarkBlue, 
            XColors.Purple
        );
        gfx.DrawRectangle(titleBrush, 0, 0, page.Width, 80);
        gfx.DrawString("2024 Sales Performance Report", 
            titleFont, XBrushes.White,
            new XRect(0, 20, page.Width, 40),
            XStringFormats.TopCenter);

        // Draw table manually
        double yPosition = 120;
        double margin = 50;
        double columnWidth = (page.Width - 2 * margin) / 3;

        // Table header
        gfx.DrawRectangle(XBrushes.LightGray, margin, yPosition, page.Width - 2 * margin, 25);
        gfx.DrawString("Month", headingFont, XBrushes.Black, 
            new XRect(margin, yPosition, columnWidth, 25), 
            XStringFormats.Center);
        gfx.DrawString("Revenue", headingFont, XBrushes.Black, 
            new XRect(margin + columnWidth, yPosition, columnWidth, 25), 
            XStringFormats.Center);
        gfx.DrawString("Growth", headingFont, XBrushes.Black, 
            new XRect(margin + 2 * columnWidth, yPosition, columnWidth, 25), 
            XStringFormats.Center);

        // Table data
        string[,] data = {
            { "January", "$50,000", "+12%" },
            { "February", "$55,000", "+10%" },
            { "March", "$60,000", "+9%" }
        };

        yPosition += 25;
        for (int i = 0; i < 3; i++)
        {
            // Alternate row colors
            if (i % 2 == 0)
            {
                gfx.DrawRectangle(XBrushes.WhiteSmoke, margin, yPosition, page.Width - 2 * margin, 20);
            }

            for (int j = 0; j < 3; j++)
            {
                gfx.DrawString(data[i, j], normalFont, XBrushes.Black,
                    new XRect(margin + j * columnWidth, yPosition, columnWidth, 20),
                    XStringFormats.Center);
            }
            yPosition += 20;
        }

        // Draw a simple line chart (very basic implementation)
        yPosition += 40;
        gfx.DrawString("Revenue Trend", headingFont, XBrushes.Black,
            new XRect(margin, yPosition, page.Width - 2 * margin, 25),
            XStringFormats.TopLeft);

        // Chart area
        yPosition += 30;
        double chartHeight = 150;
        double chartWidth = page.Width - 2 * margin;

        // Draw axes
        gfx.DrawLine(XPens.Black, margin, yPosition + chartHeight, margin + chartWidth, yPosition + chartHeight);
        gfx.DrawLine(XPens.Black, margin, yPosition, margin, yPosition + chartHeight);

        // Plot points (simplified)
        double[] revenues = { 50000, 55000, 60000 };
        double maxRevenue = 65000;
        double xStep = chartWidth / 3;

        for (int i = 0; i < revenues.Length; i++)
        {
            double x = margin + (i + 0.5) * xStep;
            double y = yPosition + chartHeight - (revenues[i] / maxRevenue * chartHeight);

            // Draw point
            gfx.DrawEllipse(XBrushes.Blue, x - 3, y - 3, 6, 6);

            // Draw connecting lines
            if (i > 0)
            {
                double prevX = margin + (i - 0.5) * xStep;
                double prevY = yPosition + chartHeight - (revenues[i - 1] / maxRevenue * chartHeight);
                gfx.DrawLine(new XPen(XColors.Blue, 2), prevX, prevY, x, y);
            }

            // Labels
            gfx.DrawString($"${revenues[i]:N0}", normalFont, XBrushes.Black,
                new XRect(x - 30, y - 20, 60, 15),
                XStringFormats.TopCenter);
        }

        // Save the document
        document.Save("pdfsharp-sales-report.pdf");
        Console.WriteLine("PDF created with PDFSharpCore");
    }
}
using PdfSharpCore.Drawing;
using PdfSharpCore.Pdf;
using System;

class Program
{
    static void Main()
    {
        // Create a new PDF document
        var document = new PdfDocument();
        document.Info.Title = "Sales Report Q1 2024";
        document.Info.Author = "Sales Department";

        // Add a page
        var page = document.AddPage();
        page.Size = PdfSharpCore.PageSize.A4;

        // Create graphics object for drawing
        var gfx = XGraphics.FromPdfPage(page);

        // Define fonts
        var titleFont = new XFont("Arial", 24, XFontStyle.Bold);
        var headingFont = new XFont("Arial", 14, XFontStyle.Bold);
        var normalFont = new XFont("Arial", 11, XFontStyle.Regular);

        // Draw title with gradient-like effect (manual implementation)
        var titleBrush = new XLinearGradientBrush(
            new XPoint(0, 0), 
            new XPoint(page.Width, 0),
            XColors.DarkBlue, 
            XColors.Purple
        );
        gfx.DrawRectangle(titleBrush, 0, 0, page.Width, 80);
        gfx.DrawString("2024 Sales Performance Report", 
            titleFont, XBrushes.White,
            new XRect(0, 20, page.Width, 40),
            XStringFormats.TopCenter);

        // Draw table manually
        double yPosition = 120;
        double margin = 50;
        double columnWidth = (page.Width - 2 * margin) / 3;

        // Table header
        gfx.DrawRectangle(XBrushes.LightGray, margin, yPosition, page.Width - 2 * margin, 25);
        gfx.DrawString("Month", headingFont, XBrushes.Black, 
            new XRect(margin, yPosition, columnWidth, 25), 
            XStringFormats.Center);
        gfx.DrawString("Revenue", headingFont, XBrushes.Black, 
            new XRect(margin + columnWidth, yPosition, columnWidth, 25), 
            XStringFormats.Center);
        gfx.DrawString("Growth", headingFont, XBrushes.Black, 
            new XRect(margin + 2 * columnWidth, yPosition, columnWidth, 25), 
            XStringFormats.Center);

        // Table data
        string[,] data = {
            { "January", "$50,000", "+12%" },
            { "February", "$55,000", "+10%" },
            { "March", "$60,000", "+9%" }
        };

        yPosition += 25;
        for (int i = 0; i < 3; i++)
        {
            // Alternate row colors
            if (i % 2 == 0)
            {
                gfx.DrawRectangle(XBrushes.WhiteSmoke, margin, yPosition, page.Width - 2 * margin, 20);
            }

            for (int j = 0; j < 3; j++)
            {
                gfx.DrawString(data[i, j], normalFont, XBrushes.Black,
                    new XRect(margin + j * columnWidth, yPosition, columnWidth, 20),
                    XStringFormats.Center);
            }
            yPosition += 20;
        }

        // Draw a simple line chart (very basic implementation)
        yPosition += 40;
        gfx.DrawString("Revenue Trend", headingFont, XBrushes.Black,
            new XRect(margin, yPosition, page.Width - 2 * margin, 25),
            XStringFormats.TopLeft);

        // Chart area
        yPosition += 30;
        double chartHeight = 150;
        double chartWidth = page.Width - 2 * margin;

        // Draw axes
        gfx.DrawLine(XPens.Black, margin, yPosition + chartHeight, margin + chartWidth, yPosition + chartHeight);
        gfx.DrawLine(XPens.Black, margin, yPosition, margin, yPosition + chartHeight);

        // Plot points (simplified)
        double[] revenues = { 50000, 55000, 60000 };
        double maxRevenue = 65000;
        double xStep = chartWidth / 3;

        for (int i = 0; i < revenues.Length; i++)
        {
            double x = margin + (i + 0.5) * xStep;
            double y = yPosition + chartHeight - (revenues[i] / maxRevenue * chartHeight);

            // Draw point
            gfx.DrawEllipse(XBrushes.Blue, x - 3, y - 3, 6, 6);

            // Draw connecting lines
            if (i > 0)
            {
                double prevX = margin + (i - 0.5) * xStep;
                double prevY = yPosition + chartHeight - (revenues[i - 1] / maxRevenue * chartHeight);
                gfx.DrawLine(new XPen(XColors.Blue, 2), prevX, prevY, x, y);
            }

            // Labels
            gfx.DrawString($"${revenues[i]:N0}", normalFont, XBrushes.Black,
                new XRect(x - 30, y - 20, 60, 15),
                XStringFormats.TopCenter);
        }

        // Save the document
        document.Save("pdfsharp-sales-report.pdf");
        Console.WriteLine("PDF created with PDFSharpCore");
    }
}
Imports PdfSharpCore.Drawing
Imports PdfSharpCore.Pdf
Imports System

Friend Class Program
	Shared Sub Main()
		' Create a new PDF document
		Dim document = New PdfDocument()
		document.Info.Title = "Sales Report Q1 2024"
		document.Info.Author = "Sales Department"

		' Add a page
		Dim page = document.AddPage()
		page.Size = PdfSharpCore.PageSize.A4

		' Create graphics object for drawing
		Dim gfx = XGraphics.FromPdfPage(page)

		' Define fonts
		Dim titleFont = New XFont("Arial", 24, XFontStyle.Bold)
		Dim headingFont = New XFont("Arial", 14, XFontStyle.Bold)
		Dim normalFont = New XFont("Arial", 11, XFontStyle.Regular)

		' Draw title with gradient-like effect (manual implementation)
		Dim titleBrush = New XLinearGradientBrush(New XPoint(0, 0), New XPoint(page.Width, 0), XColors.DarkBlue, XColors.Purple)
		gfx.DrawRectangle(titleBrush, 0, 0, page.Width, 80)
		gfx.DrawString("2024 Sales Performance Report", titleFont, XBrushes.White, New XRect(0, 20, page.Width, 40), XStringFormats.TopCenter)

		' Draw table manually
		Dim yPosition As Double = 120
		Dim margin As Double = 50
		Dim columnWidth As Double = (page.Width - 2 * margin) / 3

		' Table header
		gfx.DrawRectangle(XBrushes.LightGray, margin, yPosition, page.Width - 2 * margin, 25)
		gfx.DrawString("Month", headingFont, XBrushes.Black, New XRect(margin, yPosition, columnWidth, 25), XStringFormats.Center)
		gfx.DrawString("Revenue", headingFont, XBrushes.Black, New XRect(margin + columnWidth, yPosition, columnWidth, 25), XStringFormats.Center)
		gfx.DrawString("Growth", headingFont, XBrushes.Black, New XRect(margin + 2 * columnWidth, yPosition, columnWidth, 25), XStringFormats.Center)

		' Table data
		Dim data(,) As String = {
			{ "January", "$50,000", "+12%" },
			{ "February", "$55,000", "+10%" },
			{ "March", "$60,000", "+9%" }
		}

		yPosition += 25
		For i As Integer = 0 To 2
			' Alternate row colors
			If i Mod 2 = 0 Then
				gfx.DrawRectangle(XBrushes.WhiteSmoke, margin, yPosition, page.Width - 2 * margin, 20)
			End If

			For j As Integer = 0 To 2
				gfx.DrawString(data(i, j), normalFont, XBrushes.Black, New XRect(margin + j * columnWidth, yPosition, columnWidth, 20), XStringFormats.Center)
			Next j
			yPosition += 20
		Next i

		' Draw a simple line chart (very basic implementation)
		yPosition += 40
		gfx.DrawString("Revenue Trend", headingFont, XBrushes.Black, New XRect(margin, yPosition, page.Width - 2 * margin, 25), XStringFormats.TopLeft)

		' Chart area
		yPosition += 30
		Dim chartHeight As Double = 150
		Dim chartWidth As Double = page.Width - 2 * margin

		' Draw axes
		gfx.DrawLine(XPens.Black, margin, yPosition + chartHeight, margin + chartWidth, yPosition + chartHeight)
		gfx.DrawLine(XPens.Black, margin, yPosition, margin, yPosition + chartHeight)

		' Plot points (simplified)
		Dim revenues() As Double = { 50000, 55000, 60000 }
		Dim maxRevenue As Double = 65000
		Dim xStep As Double = chartWidth / 3

		For i As Integer = 0 To revenues.Length - 1
			Dim x As Double = margin + (i + 0.5) * xStep
			Dim y As Double = yPosition + chartHeight - (revenues(i) / maxRevenue * chartHeight)

			' Draw point
			gfx.DrawEllipse(XBrushes.Blue, x - 3, y - 3, 6, 6)

			' Draw connecting lines
			If i > 0 Then
				Dim prevX As Double = margin + (i - 0.5) * xStep
				Dim prevY As Double = yPosition + chartHeight - (revenues(i - 1) / maxRevenue * chartHeight)
				gfx.DrawLine(New XPen(XColors.Blue, 2), prevX, prevY, x, y)
			End If

			' Labels
			gfx.DrawString($"${revenues(i):N0}", normalFont, XBrushes.Black, New XRect(x - 30, y - 20, 60, 15), XStringFormats.TopCenter)
		Next i

		' Save the document
		document.Save("pdfsharp-sales-report.pdf")
		Console.WriteLine("PDF created with PDFSharpCore")
	End Sub
End Class
$vbLabelText   $csharpLabel

As you can see, creating even a moderately complex document with PDFSharpCore requires:

  • Manual positioning of every element
  • Complex calculations for layouts
  • Nie built-in support for HTML or CSS
  • Manual implementation of charts and graphics
  • Significantly more code for the same result

HTML to PDF with PDFSharpCore

Since PDFSharpCore doesn't natively support HTML to PDF conversion, developers must use third-party libraries. A popular choice is combining PDFSharpCore with HtmlRenderer:

using PdfSharpCore.Pdf;
using TheArtOfDev.HtmlRenderer.PdfSharp;

var document = new PdfDocument();
string htmlContent = File.ReadAllText("template.html");

// Note: HtmlRenderer has limited CSS support
PdfGenerator.AddPdfPages(document, htmlContent, PdfSharpCore.PageSize.A4);
document.Save("from-html.pdf");
using PdfSharpCore.Pdf;
using TheArtOfDev.HtmlRenderer.PdfSharp;

var document = new PdfDocument();
string htmlContent = File.ReadAllText("template.html");

// Note: HtmlRenderer has limited CSS support
PdfGenerator.AddPdfPages(document, htmlContent, PdfSharpCore.PageSize.A4);
document.Save("from-html.pdf");
Imports PdfSharpCore.Pdf
Imports TheArtOfDev.HtmlRenderer.PdfSharp

Private document = New PdfDocument()
Private htmlContent As String = File.ReadAllText("template.html")

' Note: HtmlRenderer has limited CSS support
PdfGenerator.AddPdfPages(document, htmlContent, PdfSharpCore.PageSize.A4)
document.Save("from-html.pdf")
$vbLabelText   $csharpLabel

However, this approach has significant limitations:

  • Limited CSS3 support (approximately 70-80% compatibility)
  • Brak możliwości wykonywania kodu JavaScript
  • Poor handling of modern web features
  • Inconsistent rendering compared to browsers

Modern CSS Framework Wsparcie: Bootstrap and Beyond

When developing applications that require PDF generation from web content, Bootstrap and modern CSS framework support is critical. Most web applications use these frameworks for consistent design, and the ability to convert these interfaces to PDF without modification significantly reduces development time.

IronPDF: Full Bootstrap and CSS Framework Wsparcie

  • Bootstrap 5: Complete flexbox layout engine, CSS Grid, utility classes, and all component systems
  • Bootstrap 4: Full card components, navigation, flex utilities, and responsive classes
  • Tailwind CSS: All utility classes with accurate rendering
  • Foundation: Complete grid system and component library
  • Modern CSS3: Flexbox, CSS Grid, custom properties, animations, transitions, and transforms

Real-world proof:IronPDFrenders the Bootstrap homepage and all official templates with pixel-perfect accuracy.

Code Example: Project Progress Dashboard

using IronPdf;

// Set yourIronPDFlicense key
IronPdf.License.LicenseKey = "License-Key goes here";

var renderer = new ChromePdfRenderer();
string bootstrapProgress = @"
<!DOCTYPE html>
<html>
<head>
    <link href='https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css' rel='stylesheet'>
    <style>
        .project-card {
            transition: all 0.3s ease;
            border-left: 4px solid transparent;
        }
        .project-card.active { border-left-color: #0d6efd; }
        .progress-label { font-size: 0.75rem; font-weight: 600; }
    </style>
</head>
<body>
    <div class='container my-5'>
        <div class='d-flex justify-content-between align-items-center mb-4'>
            <div>
                <h1 class='display-6 mb-1'>Project Portfolio Status</h1>
                <p class='text-muted mb-0'>Q1 2025 Development Pipeline</p>
            </div>
            <div>
                <span class='badge bg-success fs-6'>8 Active Projects</span>
            </div>
        </div>

        <div class='row g-4 mb-4'>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-primary mb-2'>72%</div>
                        <h6 class='text-muted text-uppercase mb-0'>Overall Progress</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-success mb-2'>5</div>
                        <h6 class='text-muted text-uppercase mb-0'>On Track</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-warning mb-2'>2</div>
                        <h6 class='text-muted text-uppercase mb-0'>At Risk</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-danger mb-2'>1</div>
                        <h6 class='text-muted text-uppercase mb-0'>Delayed</h6>
                    </div>
                </div>
            </div>
        </div>

        <div class='card shadow-sm mb-4'>
            <div class='card-header bg-primary text-white'>
                <h5 class='mb-0'>Active Projects</h5>
            </div>
            <div class='card-body p-0'>
                <div class='list-group list-group-flush'>
                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>E-Commerce Platform Redesign</h6>
                                <small class='text-muted'>Lead: Sarah Chen | Due: Apr 15, 2025</small>
                            </div>
                            <span class='badge bg-success'>On Track</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-primary'>85%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-primary' role='progressbar' style='width: 85%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Frontend: 90%</span>
                            <span class='badge bg-light text-dark'>Backend: 80%</span>
                            <span class='badge bg-light text-dark'>Testing: 85%</span>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Mobile App Integration</h6>
                                <small class='text-muted'>Lead: Marcus Johnson | Due: Mar 30, 2025</small>
                            </div>
                            <span class='badge bg-success'>On Track</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-success'>92%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-success' role='progressbar' style='width: 92%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>iOS: 95%</span>
                            <span class='badge bg-light text-dark'>Android: 90%</span>
                            <span class='badge bg-light text-dark'>API: 100%</span>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Customer Analytics Dashboard</h6>
                                <small class='text-muted'>Lead: Emily Rodriguez | Due: Apr 22, 2025</small>
                            </div>
                            <span class='badge bg-warning text-dark'>At Risk</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-warning'>58%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-warning' role='progressbar' style='width: 58%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Data Pipeline: 65%</span>
                            <span class='badge bg-light text-dark'>UI: 50%</span>
                            <span class='badge bg-light text-dark'>Reports: 45%</span>
                        </div>
                        <div class='alert alert-warning mt-2 mb-0 py-2'>
                            <small><strong>Issue:</strong> Resource constraints affecting timeline. Review scheduled for next week.</small>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Security Infrastructure Upgrade</h6>
                                <small class='text-muted'>Lead: David Kim | Due: Mar 25, 2025</small>
                            </div>
                            <span class='badge bg-danger'>Delayed</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-danger'>42%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-danger' role='progressbar' style='width: 42%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Authentication: 60%</span>
                            <span class='badge bg-light text-dark'>Szyfrowanie: 40%</span>
                            <span class='badge bg-light text-dark'>Audit Logs: 25%</span>
                        </div>
                        <div class='alert alert-danger mt-2 mb-0 py-2'>
                            <small><strong>Critical:</strong> 7 days behind schedule. Additional resources allocated. Daily standup required.</small>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class='row g-4'>
            <div class='col-md-6'>
                <div class='card shadow-sm'>
                    <div class='card-header bg-white'>
                        <h5 class='mb-0'>Sprint Velocity</h5>
                    </div>
                    <div class='card-body'>
                        <div class='mb-3'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Current Sprint</span>
                                <strong>42 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-success' style='width: 84%'>84% Complete</div>
                            </div>
                        </div>
                        <div class='mb-3'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Previous Sprint</span>
                                <strong>38 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-info' style='width: 100%'>Completed</div>
                            </div>
                        </div>
                        <div class='mb-0'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Average Velocity</span>
                                <strong>40 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-primary' style='width: 100%'>Baseline</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card shadow-sm'>
                    <div class='card-header bg-white'>
                        <h5 class='mb-0'>Team Capacity</h5>
                    </div>
                    <div class='card-body'>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>Frontend Team</h6>
                                <small class='text-muted'>6 developers</small>
                            </div>
                            <span class='badge bg-success'>92% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>Backend Team</h6>
                                <small class='text-muted'>5 developers</small>
                            </div>
                            <span class='badge bg-success'>88% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>QA Team</h6>
                                <small class='text-muted'>3 testers</small>
                            </div>
                            <span class='badge bg-warning text-dark'>105% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-0'>
                            <div>
                                <h6 class='mb-0'>DevOps Team</h6>
                                <small class='text-muted'>2 engineers</small>
                            </div>
                            <span class='badge bg-danger'>110% Utilized</span>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
</html>";

var pdf = renderer.RenderHtmlAsPdf(bootstrapProgress);
pdf.SaveAs("project-progress.pdf");
using IronPdf;

// Set yourIronPDFlicense key
IronPdf.License.LicenseKey = "License-Key goes here";

var renderer = new ChromePdfRenderer();
string bootstrapProgress = @"
<!DOCTYPE html>
<html>
<head>
    <link href='https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css' rel='stylesheet'>
    <style>
        .project-card {
            transition: all 0.3s ease;
            border-left: 4px solid transparent;
        }
        .project-card.active { border-left-color: #0d6efd; }
        .progress-label { font-size: 0.75rem; font-weight: 600; }
    </style>
</head>
<body>
    <div class='container my-5'>
        <div class='d-flex justify-content-between align-items-center mb-4'>
            <div>
                <h1 class='display-6 mb-1'>Project Portfolio Status</h1>
                <p class='text-muted mb-0'>Q1 2025 Development Pipeline</p>
            </div>
            <div>
                <span class='badge bg-success fs-6'>8 Active Projects</span>
            </div>
        </div>

        <div class='row g-4 mb-4'>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-primary mb-2'>72%</div>
                        <h6 class='text-muted text-uppercase mb-0'>Overall Progress</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-success mb-2'>5</div>
                        <h6 class='text-muted text-uppercase mb-0'>On Track</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-warning mb-2'>2</div>
                        <h6 class='text-muted text-uppercase mb-0'>At Risk</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-danger mb-2'>1</div>
                        <h6 class='text-muted text-uppercase mb-0'>Delayed</h6>
                    </div>
                </div>
            </div>
        </div>

        <div class='card shadow-sm mb-4'>
            <div class='card-header bg-primary text-white'>
                <h5 class='mb-0'>Active Projects</h5>
            </div>
            <div class='card-body p-0'>
                <div class='list-group list-group-flush'>
                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>E-Commerce Platform Redesign</h6>
                                <small class='text-muted'>Lead: Sarah Chen | Due: Apr 15, 2025</small>
                            </div>
                            <span class='badge bg-success'>On Track</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-primary'>85%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-primary' role='progressbar' style='width: 85%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Frontend: 90%</span>
                            <span class='badge bg-light text-dark'>Backend: 80%</span>
                            <span class='badge bg-light text-dark'>Testing: 85%</span>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Mobile App Integration</h6>
                                <small class='text-muted'>Lead: Marcus Johnson | Due: Mar 30, 2025</small>
                            </div>
                            <span class='badge bg-success'>On Track</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-success'>92%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-success' role='progressbar' style='width: 92%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>iOS: 95%</span>
                            <span class='badge bg-light text-dark'>Android: 90%</span>
                            <span class='badge bg-light text-dark'>API: 100%</span>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Customer Analytics Dashboard</h6>
                                <small class='text-muted'>Lead: Emily Rodriguez | Due: Apr 22, 2025</small>
                            </div>
                            <span class='badge bg-warning text-dark'>At Risk</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-warning'>58%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-warning' role='progressbar' style='width: 58%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Data Pipeline: 65%</span>
                            <span class='badge bg-light text-dark'>UI: 50%</span>
                            <span class='badge bg-light text-dark'>Reports: 45%</span>
                        </div>
                        <div class='alert alert-warning mt-2 mb-0 py-2'>
                            <small><strong>Issue:</strong> Resource constraints affecting timeline. Review scheduled for next week.</small>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Security Infrastructure Upgrade</h6>
                                <small class='text-muted'>Lead: David Kim | Due: Mar 25, 2025</small>
                            </div>
                            <span class='badge bg-danger'>Delayed</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-danger'>42%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-danger' role='progressbar' style='width: 42%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Authentication: 60%</span>
                            <span class='badge bg-light text-dark'>Szyfrowanie: 40%</span>
                            <span class='badge bg-light text-dark'>Audit Logs: 25%</span>
                        </div>
                        <div class='alert alert-danger mt-2 mb-0 py-2'>
                            <small><strong>Critical:</strong> 7 days behind schedule. Additional resources allocated. Daily standup required.</small>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class='row g-4'>
            <div class='col-md-6'>
                <div class='card shadow-sm'>
                    <div class='card-header bg-white'>
                        <h5 class='mb-0'>Sprint Velocity</h5>
                    </div>
                    <div class='card-body'>
                        <div class='mb-3'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Current Sprint</span>
                                <strong>42 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-success' style='width: 84%'>84% Complete</div>
                            </div>
                        </div>
                        <div class='mb-3'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Previous Sprint</span>
                                <strong>38 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-info' style='width: 100%'>Completed</div>
                            </div>
                        </div>
                        <div class='mb-0'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Average Velocity</span>
                                <strong>40 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-primary' style='width: 100%'>Baseline</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card shadow-sm'>
                    <div class='card-header bg-white'>
                        <h5 class='mb-0'>Team Capacity</h5>
                    </div>
                    <div class='card-body'>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>Frontend Team</h6>
                                <small class='text-muted'>6 developers</small>
                            </div>
                            <span class='badge bg-success'>92% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>Backend Team</h6>
                                <small class='text-muted'>5 developers</small>
                            </div>
                            <span class='badge bg-success'>88% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>QA Team</h6>
                                <small class='text-muted'>3 testers</small>
                            </div>
                            <span class='badge bg-warning text-dark'>105% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-0'>
                            <div>
                                <h6 class='mb-0'>DevOps Team</h6>
                                <small class='text-muted'>2 engineers</small>
                            </div>
                            <span class='badge bg-danger'>110% Utilized</span>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
</html>";

var pdf = renderer.RenderHtmlAsPdf(bootstrapProgress);
pdf.SaveAs("project-progress.pdf");
Imports IronPdf

' Set your IronPDF license key
IronPdf.License.LicenseKey = "License-Key goes here"

Dim renderer As New ChromePdfRenderer()
Dim bootstrapProgress As String = "
<!DOCTYPE html>
<html>
<head>
    <link href='https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css' rel='stylesheet'>
    <style>
        .project-card {
            transition: all 0.3s ease;
            border-left: 4px solid transparent;
        }
        .project-card.active { border-left-color: #0d6efd; }
        .progress-label { font-size: 0.75rem; font-weight: 600; }
    </style>
</head>
<body>
    <div class='container my-5'>
        <div class='d-flex justify-content-between align-items-center mb-4'>
            <div>
                <h1 class='display-6 mb-1'>Project Portfolio Status</h1>
                <p class='text-muted mb-0'>Q1 2025 Development Pipeline</p>
            </div>
            <div>
                <span class='badge bg-success fs-6'>8 Active Projects</span>
            </div>
        </div>

        <div class='row g-4 mb-4'>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-primary mb-2'>72%</div>
                        <h6 class='text-muted text-uppercase mb-0'>Overall Progress</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-success mb-2'>5</div>
                        <h6 class='text-muted text-uppercase mb-0'>On Track</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-warning mb-2'>2</div>
                        <h6 class='text-muted text-uppercase mb-0'>At Risk</h6>
                    </div>
                </div>
            </div>
            <div class='col-md-3'>
                <div class='card text-center shadow-sm'>
                    <div class='card-body'>
                        <div class='display-4 text-danger mb-2'>1</div>
                        <h6 class='text-muted text-uppercase mb-0'>Delayed</h6>
                    </div>
                </div>
            </div>
        </div>

        <div class='card shadow-sm mb-4'>
            <div class='card-header bg-primary text-white'>
                <h5 class='mb-0'>Active Projects</h5>
            </div>
            <div class='card-body p-0'>
                <div class='list-group list-group-flush'>
                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>E-Commerce Platform Redesign</h6>
                                <small class='text-muted'>Lead: Sarah Chen | Due: Apr 15, 2025</small>
                            </div>
                            <span class='badge bg-success'>On Track</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-primary'>85%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-primary' role='progressbar' style='width: 85%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Frontend: 90%</span>
                            <span class='badge bg-light text-dark'>Backend: 80%</span>
                            <span class='badge bg-light text-dark'>Testing: 85%</span>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Mobile App Integration</h6>
                                <small class='text-muted'>Lead: Marcus Johnson | Due: Mar 30, 2025</small>
                            </div>
                            <span class='badge bg-success'>On Track</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-success'>92%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-success' role='progressbar' style='width: 92%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>iOS: 95%</span>
                            <span class='badge bg-light text-dark'>Android: 90%</span>
                            <span class='badge bg-light text-dark'>API: 100%</span>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Customer Analytics Dashboard</h6>
                                <small class='text-muted'>Lead: Emily Rodriguez | Due: Apr 22, 2025</small>
                            </div>
                            <span class='badge bg-warning text-dark'>At Risk</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-warning'>58%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-warning' role='progressbar' style='width: 58%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Data Pipeline: 65%</span>
                            <span class='badge bg-light text-dark'>UI: 50%</span>
                            <span class='badge bg-light text-dark'>Reports: 45%</span>
                        </div>
                        <div class='alert alert-warning mt-2 mb-0 py-2'>
                            <small><strong>Issue:</strong> Resource constraints affecting timeline. Review scheduled for next week.</small>
                        </div>
                    </div>

                    <div class='list-group-item'>
                        <div class='d-flex justify-content-between align-items-start mb-3'>
                            <div>
                                <h6 class='mb-1'>Security Infrastructure Upgrade</h6>
                                <small class='text-muted'>Lead: David Kim | Due: Mar 25, 2025</small>
                            </div>
                            <span class='badge bg-danger'>Delayed</span>
                        </div>
                        <div class='mb-2'>
                            <div class='d-flex justify-content-between align-items-center mb-1'>
                                <span class='progress-label text-muted'>COMPLETION</span>
                                <span class='progress-label text-danger'>42%</span>
                            </div>
                            <div class='progress' style='height: 8px;'>
                                <div class='progress-bar bg-danger' role='progressbar' style='width: 42%'></div>
                            </div>
                        </div>
                        <div class='d-flex gap-2 flex-wrap'>
                            <span class='badge bg-light text-dark'>Authentication: 60%</span>
                            <span class='badge bg-light text-dark'>Szyfrowanie: 40%</span>
                            <span class='badge bg-light text-dark'>Audit Logs: 25%</span>
                        </div>
                        <div class='alert alert-danger mt-2 mb-0 py-2'>
                            <small><strong>Critical:</strong> 7 days behind schedule. Additional resources allocated. Daily standup required.</small>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class='row g-4'>
            <div class='col-md-6'>
                <div class='card shadow-sm'>
                    <div class='card-header bg-white'>
                        <h5 class='mb-0'>Sprint Velocity</h5>
                    </div>
                    <div class='card-body'>
                        <div class='mb-3'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Current Sprint</span>
                                <strong>42 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-success' style='width: 84%'>84% Complete</div>
                            </div>
                        </div>
                        <div class='mb-3'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Previous Sprint</span>
                                <strong>38 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-info' style='width: 100%'>Completed</div>
                            </div>
                        </div>
                        <div class='mb-0'>
                            <div class='d-flex justify-content-between mb-1'>
                                <span class='text-muted'>Average Velocity</span>
                                <strong>40 Story Points</strong>
                            </div>
                            <div class='progress' style='height: 20px;'>
                                <div class='progress-bar bg-primary' style='width: 100%'>Baseline</div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class='col-md-6'>
                <div class='card shadow-sm'>
                    <div class='card-header bg-white'>
                        <h5 class='mb-0'>Team Capacity</h5>
                    </div>
                    <div class='card-body'>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>Frontend Team</h6>
                                <small class='text-muted'>6 developers</small>
                            </div>
                            <span class='badge bg-success'>92% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>Backend Team</h6>
                                <small class='text-muted'>5 developers</small>
                            </div>
                            <span class='badge bg-success'>88% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-3'>
                            <div>
                                <h6 class='mb-0'>QA Team</h6>
                                <small class='text-muted'>3 testers</small>
                            </div>
                            <span class='badge bg-warning text-dark'>105% Utilized</span>
                        </div>
                        <div class='d-flex justify-content-between align-items-center mb-0'>
                            <div>
                                <h6 class='mb-0'>DevOps Team</h6>
                                <small class='text-muted'>2 engineers</small>
                            </div>
                            <span class='badge bg-danger'>110% Utilized</span>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</body>
</html>"

Dim pdf = renderer.RenderHtmlAsPdf(bootstrapProgress)
pdf.SaveAs("project-progress.pdf")
$vbLabelText   $csharpLabel

Output: Professional project management PDF with Bootstrap 5's flexbox-based layouts, progress bar components, badge utilities, responsive card systems, and alert components—all rendering with perfect alignment, spacing, and color accuracy.

PDFSharpCore: Nie Native HTML Wsparcie

PDFSharpCore has no native HTML rendering engine. The library is designed exclusively for low-level PDF manipulation and drawing operations:

  • No Bootstrap support: Cannot process HTML/CSS frameworks at all
  • No flexbox or CSS Grid: Nie CSS rendering capabilities whatsoever
  • Manual construction only: Requires drawing text, shapes, and images using coordinate-based APIs
  • External tools required: Must use third-party HTML renderers or conversion services

The HtmlRenderer integration (third-party) provides only basic HTML support with severe limitations—approximately 70-80% CSS3 compatibility, no flexbox, no CSS Grid, and no modern framework support.

Development impact: Teams must either abandon HTML-based workflows entirely or integrate multiple tools (PDFSharpCore + external HTML renderer), adding complexity, maintenance burden, and potential compatibility issues between library versions.

For detailed Bootstrap framework compatibility and CSS3 rendering capabilities, see the Bootstrap & Flexbox CSS Guide.

Porównanie zaawansowanych funkcji

Wyodrębnianie tekstu

One of the most common PDF operations is extracting text for indexing, analysis, or conversion. Here's how both libraries handle this task:

IronPDFWyodrębnianie tekstu

IronPDF provides robust text extraction capabilities with a simple API:

using IronPdf;

// Extract all text from a PDF
var pdf = PdfDocument.FromFile("report.pdf");
string allText = pdf.ExtractAllText();

// Extract text from specific pages
for (int i = 0; i < pdf.PageCount; i++)
{
    string pageText = pdf.ExtractTextFromPage(i);
    Console.WriteLine($"Page {i + 1}: {pageText.Substring(0, Math.Min(100, pageText.Length))}...");
}

// Extract text from a specific region
var pageIndex = 0;
var region = new Rectangle(50, 50, 200, 100); // x, y, width, height
string regionText = pdf.ExtractTextFromPage(pageIndex, region);
using IronPdf;

// Extract all text from a PDF
var pdf = PdfDocument.FromFile("report.pdf");
string allText = pdf.ExtractAllText();

// Extract text from specific pages
for (int i = 0; i < pdf.PageCount; i++)
{
    string pageText = pdf.ExtractTextFromPage(i);
    Console.WriteLine($"Page {i + 1}: {pageText.Substring(0, Math.Min(100, pageText.Length))}...");
}

// Extract text from a specific region
var pageIndex = 0;
var region = new Rectangle(50, 50, 200, 100); // x, y, width, height
string regionText = pdf.ExtractTextFromPage(pageIndex, region);
Imports IronPdf

' Extract all text from a PDF
Private pdf = PdfDocument.FromFile("report.pdf")
Private allText As String = pdf.ExtractAllText()

' Extract text from specific pages
For i As Integer = 0 To pdf.PageCount - 1
	Dim pageText As String = pdf.ExtractTextFromPage(i)
	Console.WriteLine($"Page {i + 1}: {pageText.Substring(0, Math.Min(100, pageText.Length))}...")
Next i

' Extract text from a specific region
Dim pageIndex = 0
Dim region = New Rectangle(50, 50, 200, 100) ' x, y, width, height
Dim regionText As String = pdf.ExtractTextFromPage(pageIndex, region)
$vbLabelText   $csharpLabel

PDFSharpCore Wyodrębnianie tekstu

PDFSharpCore has limited native text extraction capabilities. As noted in the comparison articles, it often produces fragmented or incomplete results:

// PDFSharpCore doesn't have reliable text extraction
// This is a significant limitation for many use cases
// PDFSharpCore doesn't have reliable text extraction
// This is a significant limitation for many use cases
' PDFSharpCore doesn't have reliable text extraction
' This is a significant limitation for many use cases
$vbLabelText   $csharpLabel

Znak wodny

Znak wodny PDFs is essential for branding and document security.

IronPDFZnak wodny

using IronPdf;

var pdf = PdfDocument.FromFile("document.pdf");

// HTML-based watermark with full CSS support
string watermarkHtml = @"
    <div style='
        font-size: 48px;
        color: rgba(255, 0, 0, 0.3);
        transform: rotate(-45deg);
        text-align: center;
        font-weight: bold;
    '>
        CONFIDENTIAL
    </div>";

pdf.ApplyWatermark(watermarkHtml, 50, VerticalAlignment.Middle, HorizontalAlignment.Center);

// Image watermark
pdf.ApplyWatermark("logo.png", 30, VerticalAlignment.Bottom, HorizontalAlignment.Right);

pdf.SaveAs("watermarked.pdf");
using IronPdf;

var pdf = PdfDocument.FromFile("document.pdf");

// HTML-based watermark with full CSS support
string watermarkHtml = @"
    <div style='
        font-size: 48px;
        color: rgba(255, 0, 0, 0.3);
        transform: rotate(-45deg);
        text-align: center;
        font-weight: bold;
    '>
        CONFIDENTIAL
    </div>";

pdf.ApplyWatermark(watermarkHtml, 50, VerticalAlignment.Middle, HorizontalAlignment.Center);

// Image watermark
pdf.ApplyWatermark("logo.png", 30, VerticalAlignment.Bottom, HorizontalAlignment.Right);

pdf.SaveAs("watermarked.pdf");
Imports IronPdf

Private pdf = PdfDocument.FromFile("document.pdf")

' HTML-based watermark with full CSS support
Private watermarkHtml As String = "
    <div style='
        font-size: 48px;
        color: rgba(255, 0, 0, 0.3);
        transform: rotate(-45deg);
        text-align: center;
        font-weight: bold;
    '>
        CONFIDENTIAL
    </div>"

pdf.ApplyWatermark(watermarkHtml, 50, VerticalAlignment.Middle, HorizontalAlignment.Center)

' Image watermark
pdf.ApplyWatermark("logo.png", 30, VerticalAlignment.Bottom, HorizontalAlignment.Right)

pdf.SaveAs("watermarked.pdf")
$vbLabelText   $csharpLabel

PDFSharpCore Znak wodny

using PdfSharpCore.Drawing;
using PdfSharpCore.Pdf;
using PdfSharpCore.Pdf.IO;

var document = PdfReader.Open("document.pdf", PdfDocumentOpenMode.Modify);

foreach (var page in document.Pages)
{
    var gfx = XGraphics.FromPdfPage(page, XGraphicsPdfPageOptions.Append);

    // Create watermark font
    var font = new XFont("Arial", 48);

    // Calculate rotation
    gfx.TranslateTransform(page.Width / 2, page.Height / 2);
    gfx.RotateTransform(-45);

    // Draw watermark
    var size = gfx.MeasureString("CONFIDENTIAL", font);
    gfx.DrawString("CONFIDENTIAL", font, 
        new XSolidBrush(XColor.FromArgb(128, 255, 0, 0)),
        new XRect(-size.Width / 2, -size.Height / 2, size.Width, size.Height),
        XStringFormats.Center);
}

document.Save("watermarked-pdfsharp.pdf");
using PdfSharpCore.Drawing;
using PdfSharpCore.Pdf;
using PdfSharpCore.Pdf.IO;

var document = PdfReader.Open("document.pdf", PdfDocumentOpenMode.Modify);

foreach (var page in document.Pages)
{
    var gfx = XGraphics.FromPdfPage(page, XGraphicsPdfPageOptions.Append);

    // Create watermark font
    var font = new XFont("Arial", 48);

    // Calculate rotation
    gfx.TranslateTransform(page.Width / 2, page.Height / 2);
    gfx.RotateTransform(-45);

    // Draw watermark
    var size = gfx.MeasureString("CONFIDENTIAL", font);
    gfx.DrawString("CONFIDENTIAL", font, 
        new XSolidBrush(XColor.FromArgb(128, 255, 0, 0)),
        new XRect(-size.Width / 2, -size.Height / 2, size.Width, size.Height),
        XStringFormats.Center);
}

document.Save("watermarked-pdfsharp.pdf");
Imports PdfSharpCore.Drawing
Imports PdfSharpCore.Pdf
Imports PdfSharpCore.Pdf.IO

Private document = PdfReader.Open("document.pdf", PdfDocumentOpenMode.Modify)

For Each page In document.Pages
	Dim gfx = XGraphics.FromPdfPage(page, XGraphicsPdfPageOptions.Append)

	' Create watermark font
	Dim font = New XFont("Arial", 48)

	' Calculate rotation
	gfx.TranslateTransform(page.Width \ 2, page.Height \ 2)
	gfx.RotateTransform(-45)

	' Draw watermark
	Dim size = gfx.MeasureString("CONFIDENTIAL", font)
	gfx.DrawString("CONFIDENTIAL", font, New XSolidBrush(XColor.FromArgb(128, 255, 0, 0)), New XRect(-size.Width \ 2, -size.Height \ 2, size.Width, size.Height), XStringFormats.Center)
Next page

document.Save("watermarked-pdfsharp.pdf")
$vbLabelText   $csharpLabel

Podpisy cyfrowe

Digital signatures ensure document authenticity and integrity.

IronPDFPodpisy cyfrowe

using IronPdf;
using IronPdf.Signing;

var pdf = PdfDocument.FromFile("contract.pdf");

// Create a signature with certificate
var signature = new PdfSignature("certificate.pfx", "password")
{
    SigningContact = "legal@company.com",
    SigningLocation = "New York, NY",
    SigningReason = "Contract Approval"
};

// Add visual signature
var signatureImage = new PdfSignature("certificate.pfx", "password")
{
    SignatureImage = new PdfSignatureImage("signature.png", 0, 0, 200, 100)
};

// Apply signature to the last page
pdf.Sign(signature);
pdf.SaveAs("signed-contract.pdf");
using IronPdf;
using IronPdf.Signing;

var pdf = PdfDocument.FromFile("contract.pdf");

// Create a signature with certificate
var signature = new PdfSignature("certificate.pfx", "password")
{
    SigningContact = "legal@company.com",
    SigningLocation = "New York, NY",
    SigningReason = "Contract Approval"
};

// Add visual signature
var signatureImage = new PdfSignature("certificate.pfx", "password")
{
    SignatureImage = new PdfSignatureImage("signature.png", 0, 0, 200, 100)
};

// Apply signature to the last page
pdf.Sign(signature);
pdf.SaveAs("signed-contract.pdf");
Imports IronPdf
Imports IronPdf.Signing

Private pdf = PdfDocument.FromFile("contract.pdf")

' Create a signature with certificate
Private signature = New PdfSignature("certificate.pfx", "password") With {
	.SigningContact = "legal@company.com",
	.SigningLocation = "New York, NY",
	.SigningReason = "Contract Approval"
}

' Add visual signature
Private signatureImage = New PdfSignature("certificate.pfx", "password") With {.SignatureImage = New PdfSignatureImage("signature.png", 0, 0, 200, 100)}

' Apply signature to the last page
pdf.Sign(signature)
pdf.SaveAs("signed-contract.pdf")
$vbLabelText   $csharpLabel

PDFSharpCore Podpisy cyfrowe

PDFSharpCore does not support digital signatures natively, which is a significant limitation for business applications requiring document security.

Form Handling

Working with PDF forms is crucial for interactive documents.

IronPDFForm Handling

using IronPdf;

// Create a form from HTML
var html = @"
    <form>
        <label>Name: <input type='text' name='fullName' required></label><br>
        <label>Email: <input type='email' name='email' required></label><br>
        <label>Subscribe: <input type='checkbox' name='subscribe' value='yes'></label><br>
        <label>
            Plan:
            <select name='plan'>
                <option value='basic'>Basic</option>
                <option value='pro'>Professional</option>
                <option value='enterprise'>Enterprise</option>
            </select>
        </label>
    </form>";

var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);

// Fill existing form
var filledPdf = PdfDocument.FromFile("application-form.pdf");
filledPdf.Form.FindFormField("fullName").Value = "John Doe";
filledPdf.Form.FindFormField("email").Value = "john@example.com";
filledPdf.Form.FindFormField("subscribe").Value = "yes";

filledPdf.SaveAs("completed-application.pdf");
using IronPdf;

// Create a form from HTML
var html = @"
    <form>
        <label>Name: <input type='text' name='fullName' required></label><br>
        <label>Email: <input type='email' name='email' required></label><br>
        <label>Subscribe: <input type='checkbox' name='subscribe' value='yes'></label><br>
        <label>
            Plan:
            <select name='plan'>
                <option value='basic'>Basic</option>
                <option value='pro'>Professional</option>
                <option value='enterprise'>Enterprise</option>
            </select>
        </label>
    </form>";

var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);

// Fill existing form
var filledPdf = PdfDocument.FromFile("application-form.pdf");
filledPdf.Form.FindFormField("fullName").Value = "John Doe";
filledPdf.Form.FindFormField("email").Value = "john@example.com";
filledPdf.Form.FindFormField("subscribe").Value = "yes";

filledPdf.SaveAs("completed-application.pdf");
Imports IronPdf

' Create a form from HTML
Private html = "
    <form>
        <label>Name: <input type='text' name='fullName' required></label><br>
        <label>Email: <input type='email' name='email' required></label><br>
        <label>Subscribe: <input type='checkbox' name='subscribe' value='yes'></label><br>
        <label>
            Plan:
            <select name='plan'>
                <option value='basic'>Basic</option>
                <option value='pro'>Professional</option>
                <option value='enterprise'>Enterprise</option>
            </select>
        </label>
    </form>"

Private renderer = New ChromePdfRenderer()
Private pdf = renderer.RenderHtmlAsPdf(html)

' Fill existing form
Private filledPdf = PdfDocument.FromFile("application-form.pdf")
filledPdf.Form.FindFormField("fullName").Value = "John Doe"
filledPdf.Form.FindFormField("email").Value = "john@example.com"
filledPdf.Form.FindFormField("subscribe").Value = "yes"

filledPdf.SaveAs("completed-application.pdf")
$vbLabelText   $csharpLabel

Testy wydajności

Based on extensive testing and community feedback, here are performance comparisons:

HTML to PDF Rendering

Test Case IronPDF PDFSharpCore (with HtmlRenderer)
Prosty kod HTML (1 strona) 0.8-1.2s 0.3-0.5s
Complex HTML with CSS3 1.5-2s Often fails or renders incorrectly
JavaScript charts 2-3s Nieobsługiwane
100-page report 15-20s 45-60s
Wykorzystanie pamięci 150-200MB 80–120 MB

Key Performance Insights

  1. IronPDF excels at:

    • Complex HTML rendering with full browser compatibility
    • Parallel processing for batch operations
    • Consistent performance across different content types
    • Async operations for better scalability
  2. PDFSharpCore performs better for:
    • Simple programmatic PDF creation
    • Lower memory footprint
    • Basic document modifications

Real-World Performance Example

//IronPDF- Batch processing with parallel execution
using IronPdf;
using System.Threading.Tasks;

class BatchProcessor
{
    public static async Task ProcessInvoicesAsync(List<string> htmlInvoices)
    {
        var renderer = new ChromePdfRenderer();

        // Process multiple PDFs in parallel
        var tasks = htmlInvoices.Select(async (html, index) =>
        {
            var pdf = await renderer.RenderHtmlAsPdfAsync(html);
            await pdf.SaveAsAsync($"invoice-{index}.pdf");
        });

        await Task.WhenAll(tasks);
    }
}
//IronPDF- Batch processing with parallel execution
using IronPdf;
using System.Threading.Tasks;

class BatchProcessor
{
    public static async Task ProcessInvoicesAsync(List<string> htmlInvoices)
    {
        var renderer = new ChromePdfRenderer();

        // Process multiple PDFs in parallel
        var tasks = htmlInvoices.Select(async (html, index) =>
        {
            var pdf = await renderer.RenderHtmlAsPdfAsync(html);
            await pdf.SaveAsAsync($"invoice-{index}.pdf");
        });

        await Task.WhenAll(tasks);
    }
}
Imports IronPdf
Imports System.Threading.Tasks

Class BatchProcessor
    Public Shared Async Function ProcessInvoicesAsync(htmlInvoices As List(Of String)) As Task
        Dim renderer = New ChromePdfRenderer()

        ' Process multiple PDFs in parallel
        Dim tasks = htmlInvoices.Select(Function(html, index) _
            Async Function()
                Dim pdf = Await renderer.RenderHtmlAsPdfAsync(html)
                Await pdf.SaveAsAsync($"invoice-{index}.pdf")
            End Function)

        Await Task.WhenAll(tasks)
    End Function
End Class
$vbLabelText   $csharpLabel

Praktyczne przykłady zastosowań

Kiedy wybrać IronPDF

IronPDF is ideal for:

  1. Web Application Integration

    • Converting dynamic web content to PDF
    • Generating reports from web dashboards
    • Creating invoices from HTML templates
  2. Enterprise Document Management

    • Implementing document workflows with digital signatures
    • Creating secure, encrypted PDFs for sensitive data
    • Batch processing large volumes of documents
  3. SaaS Applications

    • Multi-tenant PDF generation
    • Cloud-native deployments on Azure/AWS
    • High-performance async processing
  4. Complex Reporting
    • Financial statements with charts and graphs
    • Marketing materials with rich media
    • Technical documentation with code highlighting

When to Choose PDFSharpCore

PDFSharpCore is suitable for:

  1. Projekty z ograniczonym budżetem

    • Projekty open source bez budżetu na licencje
    • Proste potrzeby związane z generowaniem plików PDF
    • Projekty akademickie lub osobiste
  2. Podstawowe operacje na plikach PDF

    • Tworzenie prostych plików PDF zawierających tekst
    • Podstawowe scalanie dokumentów
    • Dodawanie prostych grafik lub kształtów
  3. Lekkie aplikacje
    • Systemy wbudowane z ograniczeniami pamięci
    • Proste narzędzia wiersza poleceń
    • Mikrousługi o minimalnych zależnościach

Licencjonowanie i ceny

Licencjonowanie IronPDF

IronPDF oferuje elastyczne opcje licencjonowania (ceny na rok 2025):

  • Lite License: $799 (1 developer, 1 location, 1 project)
  • Plus License: $1,199 (3 developers, 3 locations, 3 projects)
  • Professional License: $2,399 (10 developers, 10 locations, 10 projects)
  • Bezpłatna wersja próbna: 30-dniowy okres próbny, w pełni funkcjonalna wersja próbna

Dodatkowe korzyści:

  • Licencja wieczysta (jednorazowy zakup)
  • Możliwość redystrybucji bez opłat licencyjnych
  • W cenie zawarte jest wsparcie techniczne dostępne 24 godziny na dobę, 5 dni w tygodniu
  • Bezpłatne aktualizacje przez rok
  • Pakiet Iron Suite dostępny w promocyjnej cenie

Licencjonowanie PDFSharpCore

PDFSharpCore jest całkowicie bezpłatny na licencji MIT:

  • Brak kosztów licencji
  • Brak ograniczeń dotyczących wykorzystania komercyjnego
  • Tylko wsparcie społeczności
  • Brak gwarancji aktualizacji lub poprawek błędów

Doświadczenie programisty

Dokumentacja i zasoby

IronPDF zapewnia:

PDFSharpCore oferuje:

  • Podstawowa dokumentacja GitHub
  • Przykłady ze społeczności
  • Ograniczona liczba oficjalnych samouczków

Porównanie wsparcia

Rodzaj wsparcia IronPDF PDFSharpCore
Professional wsparcie 24/5 w cenie None
Czas odpowiedzi 24–48 godzin Zależne od społeczności
Bezpośredni dostęp do inżynierii Tak Nie
Gwarancje dotyczące usuwania błędów Tak Nie

Wnioski

Zarówno IronPDF, jak i PDFSharpCore odgrywają ważną rolę w ekosystemie PDF dla platformy .NET, ale są przeznaczone do różnych potrzeb i zastosowań.

Wybierz IronPDF, gdy:

  • Potrzebujesz solidnej konwersji HTML do PDF z pełną obsługą CSS3 i JavaScript
  • Twój projekt wymaga zaawansowanych funkcji, takich jak podpisy cyfrowe, szyfrowanie lub obsługa formularzy
  • Tworzysz aplikacje Enterprise lub komercyjne
  • Cenisz sobie obszerną dokumentację i profesjonalne wsparcie
  • Wydajność i niezawodność mają kluczowe znaczenie
  • Potrzebujesz opcji wdrożenia gotowych do pracy w chmurze

Wybierz PDFSharpCore, gdy:

  • Pracujesz nad projektem o ograniczonym budżecie lub projektem open source
  • Twoje potrzeby związane z plikami PDF są proste i nie wymagają renderowania HTML
  • Preferujesz ręczną kontrolę nad tworzeniem plików PDF
  • Zużycie pamięci jest kluczową kwestią
  • Czujesz się swobodnie w kontaktach ze społecznością

Nowoczesne podejścieIronPDFdo generowania plików PDF, w połączeniu z bogatym zestawem funkcji i doskonałym wsparciem technicznym, sprawia, że jest to najlepszy wybór dla większości profesjonalnych zastosowań. Chociaż wymaga to inwestycji w licencję, oszczędność czasu w fazie rozwoju oraz zyskana niezawodność często uzasadniają ten koszt w przypadku projektów komercyjnych.

Chcesz przekonać się, jaka to różnica? Rozpocznij bezpłatny 30-dniowy okres próbny IronPDF i przekonaj się, jak może on zmienić Twój proces tworzenia plików PDF. Dzięki obszernej dokumentacji, responsywnemu wsparciu technicznemu i bogatemu w funkcje API,IronPDFumożliwia programistom tworzenie profesjonalnych plików PDF przy minimalnym wysiłku.

Zacznij z IronPDF teraz.
green arrow pointer

Zwróć uwagęPDFSharpCore jest zastrzeżonym znakiem towarowym odpowiedniego właściciela. Ta strona nie jest powiązana z PDFSharpCore, nie jest przez nią promowana ani sponsorowana. Wszystkie nazwy produktów, logo i marki są własnością ich odpowiednich właścicieli. Porównania mają charakter wyłącznie informacyjny i odzwierciedlają informacje dostępne publicznie w momencie pisania.

Często Zadawane Pytania

Jak mogę przekonwertować HTML na PDF w języku C#?

Możesz użyć metody RenderHtmlAsPdf biblioteki IronPDF do konwersji ciągów HTML na pliki PDF. Metoda ta obsługuje pełne wykonanie CSS3 i JavaScript, zapewniając renderowanie o wysokiej wierności.

Jakie są główne różnice między IronPDF a PDFSharpCore?

IronPDF to komercyjna biblioteka z zaawansowanymi funkcjami, takimi jak konwersja HTML do PDF, podpisy cyfrowe i optymalizacja platformy chmurowej. PDFSharpCore jest oprogramowaniem typu open source, skupiającym się na podstawowym tworzeniu plików PDF za pomocą ręcznych poleceń rysowania i nie posiada natywnej funkcji konwersji HTML do PDF.

Czy za pomocą tych bibliotek mogę wyodrębnić tekst z plików PDF?

IronPDF zapewnia solidne możliwości wyodrębniania tekstu za pomocą metod takich jak ExtractAllText() i ExtractTextFromPage(), zachowując strukturę dokumentu. PDFSharpCore ma ograniczone funkcje wyodrębniania tekstu, co często skutkuje fragmentarycznymi wynikami.

Jaki jest najlepszy sposób dodawania podpisów cyfrowych do plików PDF w języku C#?

IronPDF zapewnia kompleksową obsługę podpisów cyfrowych, w tym podpisów wizualnych i certyfikatów. Oferuje konfigurowalne opcje podpisywania plików PDF, dzięki czemu nadaje się do bezpiecznych procesów obiegu dokumentów.

Jak te biblioteki radzą sobie pod względem szybkości renderowania HTML?

IronPDF zazwyczaj renderuje złożony kod HTML do formatu PDF w około 0,8–2 sekundy, zapewniając pełną obsługę CSS3 i JavaScript. PDFSharpCore jest szybszy w przypadku prostego programowego tworzenia plików PDF, ale nie obsługuje nowoczesnych technologii internetowych, co wpływa na jego możliwości renderowania.

Czy dostępna jest wersja próbna do oceny bibliotek PDF?

IronPDF oferuje 30-dniowy okres próbny, który pozwala zapoznać się ze wszystkimi funkcjami, w tym konwersją HTML do PDF. PDFSharpCore jest bezpłatny na licencji MIT i oferuje podstawowe funkcje bez okresu próbnego.

Która biblioteka jest bardziej odpowiednia do obsługi formularzy PDF?

IronPDF wyróżnia się obsługą formularzy, oferując możliwość tworzenia i wypełniania formularzy na podstawie kodu HTML oraz wyodrębniania danych z formularzy. PDFSharpCore obsługuje podstawowe funkcje związane z formularzami, ale wymaga ręcznego tworzenia pól i nie oferuje takiego samego poziomu automatyzacji.

W jaki sposób każda z bibliotek wspiera tworzenie oprogramowania wieloplatformowego?

Zarówno IronPDF, jak i PDFSharpCore obsługują systemy Windows, Linux i macOS. IronPDF posiada zoptymalizowane konfiguracje dla platform chmurowych, takich jak Azure i AWS, natomiast PDFSharpCore może wymagać dodatkowej konfiguracji w środowiskach chmurowych.

Jakiego rodzaju wsparcia mogę oczekiwać w przypadku tych bibliotek?

IronPDF oferuje profesjonalne wsparcie techniczne dostępne 24 godziny na dobę, 5 dni w tygodniu, z czasem reakcji wynoszącym 24–48 godzin, a także szczegółową dokumentację. PDFSharpCore opiera się na wsparciu społeczności poprzez fora i GitHub, bez gwarantowanego czasu reakcji.

W jaki sposób każda z bibliotek radzi sobie z wydajnością podczas złożonych operacji na plikach PDF?

IronPDF wyróżnia się w obsłudze złożonego renderowania HTML i obsługuje przetwarzanie równoległe dla operacji wsadowych, zapewniając doskonałą przepustowość. PDFSharpCore wykazuje zalety w zakresie efektywności pamięciowej dla prostych dokumentów, ale nie posiada zaawansowanych możliwości renderowania.

Jacob Mellor, Dyrektor Technologiczny @ Team Iron
Dyrektor ds. technologii

Jacob Mellor jest Chief Technology Officer w Iron Software i wizjonerskim inżynierem, pionierem technologii C# PDF. Jako pierwotny deweloper głównej bazy kodowej Iron Software, kształtuje architekturę produktów firmy od jej początku, przekształcając ją wspólnie z CEO Cameron Rimington w firmę liczą...

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