C#创建PDF（代码示例教程）

using IronPdf;
using System.IO;
using System;

var renderer = new ChromePdfRenderer();

// Basic file conversion
var pdf = renderer.RenderHtmlFileAsPdf("Templates/certificate-template.html");
pdf.SaveAs("certificate.pdf");

// Advanced: Using templates with asset directories
// Perfect when your HTML references images, CSS, or JavaScript files
var basePath = Path.Combine(Directory.GetCurrentDirectory(), "Templates", "Assets");
var pdfWithAssets = renderer.RenderHtmlFileAsPdf(
    "Templates/report-template.html", 
    basePath  //IronPDFwill resolve relative paths from here
);

// Even better: Template with placeholders
var templateHtml = File.ReadAllText("Templates/contract-template.html");
templateHtml = templateHtml
    .Replace("{{ClientName}}", "Tech Innovations Inc.")
    .Replace("{{ContractDate}}", DateTime.Now.ToString("MMMM dd, yyyy"))
    .Replace("{{ContractValue}}", "$50,000");

var contractPdf = renderer.RenderHtmlAsPdf(templateHtml);
contractPdf.SaveAs("contract-final.pdf");

IRON VB CONVERTER ERROR developers@ironsoftware.com

using IronPdf;

var renderer = new ChromePdfRenderer();

// Convert Markdown string to PDF
string markdownContent = @"
# Project Documentation

## Overview
This project demonstrates **PDF generation** from _Markdown_ content.

### Features
- Easy conversion
- Preserves formatting
- Supports lists and tables

| Feature | Status |
|---------|--------|
| Markdown Support |  |
| Table Rendering |  |
| Code Blocks |  |

```csharp
// Code blocks are preserved
var pdf = RenderMarkdownAsPdf(markdown);
\`\`\`
";

// Render Markdown as PDF
var pdfFromMarkdown = renderer.RenderMarkdownStringAsPdf(markdownContent);
pdfFromMarkdown.SaveAs("documentation.pdf");

// Convert Markdown file to PDF
var pdfFromFile = renderer.RenderMarkdownFileAsPdf("README.md");
pdfFromFile.SaveAs("readme-pdf.pdf");

Imports IronPdf

Private renderer = New ChromePdfRenderer()

' Convert Markdown string to PDF
Private markdownContent As String = "
# Project Documentation

## Overview
This project demonstrates **PDF generation** from _Markdown_ content.

### Features
- Easy conversion
- Preserves formatting
- Supports lists and tables

| Feature | Status |
|---------|--------|
| Markdown Support |  |
| Table Rendering |  |
| Code Blocks |  |

```csharp
// Code blocks are preserved
var pdf = RenderMarkdownAsPdf(markdown);
\`\`\`
"

' Render Markdown as PDF
Private pdfFromMarkdown = renderer.RenderMarkdownStringAsPdf(markdownContent)
pdfFromMarkdown.SaveAs("documentation.pdf")

' Convert Markdown file to PDF
Dim pdfFromFile = renderer.RenderMarkdownFileAsPdf("README.md")
pdfFromFile.SaveAs("readme-pdf.pdf")

using IronPdf;
using System.Collections.Generic;

// Simple DOCX to PDF conversion
var docxRenderer = new DocxToPdfRenderer();
var pdfFromDocx = docxRenderer.RenderDocxAsPdf("proposal.docx");
pdfFromDocx.SaveAs("proposal.pdf");

// Advanced: Mail merge functionality for mass document generation
var recipients = new List<Dictionary<string, string>>
{
    new() { ["Name"] = "John Smith", ["Company"] = "Tech Corp", ["Date"] = "March 15, 2024" },
    new() { ["Name"] = "Jane Doe", ["Company"] = "Innovation Inc", ["Date"] = "March 15, 2024" }
};

// Configure mail merge options
var options = new DocxPdfRenderOptions
{
    MailMergeDataSource = recipients,
    MailMergePrintAllInOnePdfDocument = false // Creates separate PDFs
};

// Generate personalized PDFs from template
foreach (var recipient in recipients)
{
    var personalizedPdf = docxRenderer.RenderDocxAsPdf("letter-template.docx", options);
    personalizedPdf.SaveAs($"letter-{recipient["Name"].Replace(" ", "-")}.pdf");
}

Imports IronPdf
Imports System.Collections.Generic

' Simple DOCX to PDF conversion
Private docxRenderer = New DocxToPdfRenderer()
Private pdfFromDocx = docxRenderer.RenderDocxAsPdf("proposal.docx")
pdfFromDocx.SaveAs("proposal.pdf")

' Advanced: Mail merge functionality for mass document generation
Dim recipients = New List(Of Dictionary(Of String, String)) From {
	New() {
		("Name") = "John Smith",
		("Company") = "Tech Corp",
		("Date") = "March 15, 2024"
	},
	New() {
		("Name") = "Jane Doe",
		("Company") = "Innovation Inc",
		("Date") = "March 15, 2024"
	}
}

' Configure mail merge options
Dim options = New DocxPdfRenderOptions With {
	.MailMergeDataSource = recipients,
	.MailMergePrintAllInOnePdfDocument = False
}

' Generate personalized PDFs from template
For Each recipient In recipients
	Dim personalizedPdf = docxRenderer.RenderDocxAsPdf("letter-template.docx", options)
	personalizedPdf.SaveAs($"letter-{recipient("Name").Replace(" ", "-")}.pdf")
Next recipient

using IronPdf;
using IronPdf.Imaging; // Install-Package IronPdf
using System.IO;

var renderer = new ChromePdfRenderer();

// Convert single image to PDF
var imagePath = "product-photo.jpg";
var imageHtml = $@"
    <html>
    <body style='margin: 0; padding: 0;'>
        <img src='{imagePath}' style='width: 100%; height: auto;' />
    </body>
    </html>";

var imagePdf = renderer.RenderHtmlAsPdf(imageHtml, Path.GetDirectoryName(imagePath));
imagePdf.SaveAs("product-catalog-page.pdf");

// Create multi-page PDF from multiple images
var imageFiles = Directory.GetFiles("ProductImages", "*.jpg");
var catalogHtml = "<html><body style='margin: 0;'>";

foreach (var image in imageFiles)
{
    catalogHtml += $@"
        <div style='page-break-after: always;'>
            <img src='{Path.GetFileName(image)}' style='width: 100%; height: auto;' />
            <p style='text-align: center;'>{Path.GetFileNameWithoutExtension(image)}</p>
        </div>";
}

catalogHtml += "</body></html>";

var catalogPdf = renderer.RenderHtmlAsPdf(catalogHtml, "ProductImages");
catalogPdf.SaveAs("product-catalog.pdf");

Imports IronPdf
Imports IronPdf.Imaging ' Install-Package IronPdf
Imports System.IO

Private renderer = New ChromePdfRenderer()

' Convert single image to PDF
Private imagePath = "product-photo.jpg"
Private imageHtml = $"
    <html>
    <body style='margin: 0; padding: 0;'>
        <img src='{imagePath}' style='width: 100%; height: auto;' />
    </body>
    </html>"

Private imagePdf = renderer.RenderHtmlAsPdf(imageHtml, Path.GetDirectoryName(imagePath))
imagePdf.SaveAs("product-catalog-page.pdf")

' Create multi-page PDF from multiple images
Dim imageFiles = Directory.GetFiles("ProductImages", "*.jpg")
Dim catalogHtml = "<html><body style='margin: 0;'>"

For Each image In imageFiles
	catalogHtml &= $"
        <div style='page-break-after: always;'>
            <img src='{Path.GetFileName(image)}' style='width: 100%; height: auto;' />
            <p style='text-align: center;'>{Path.GetFileNameWithoutExtension(image)}</p>
        </div>"
Next image

catalogHtml &= "</body></html>"

Dim catalogPdf = renderer.RenderHtmlAsPdf(catalogHtml, "ProductImages")
catalogPdf.SaveAs("product-catalog.pdf")

// Namespace: Microsoft.AspNetCore.Mvc
using Microsoft.AspNetCore.Mvc;
// Namespace: IronPdf
using IronPdf;
// Namespace: System.Threading.Tasks
using System.Threading.Tasks;
// Namespace: System.IO
using System.IO;
// Namespace: System
using System;

// ASP.NET Core MVC Controller
public class ReportController : Controller
{
    private readonly ChromePdfRenderer _pdfRenderer;

    public ReportController()
    {
        _pdfRenderer = new ChromePdfRenderer();
    }

    public async Task<IActionResult> DownloadReport(int reportId)
    {
        // Get your report data
        var reportData = await GetReportData(reportId);

        // Render view to HTML string
        var html = await RenderViewToStringAsync("Reports/MonthlyReport", reportData);

        // Convert HTML content to PDF
        var pdf = _pdfRenderer.RenderHtmlAsPdf(html);

        // Return as file download
        return File(
            pdf.BinaryData, 
            "application/pdf", 
            $"report-{reportId}-{DateTime.Now:yyyy-MM}.pdf"
        );
    }

    private async Task<string> RenderViewToStringAsync(string viewName, object model)
    {
        ViewData.Model = model;
        using var sw = new StringWriter();
        var viewResult = ViewEngines.Engines.FindPartialView(ControllerContext, viewName);
        var viewContext = new ViewContext(
            ControllerContext, 
            viewResult.View, 
            ViewData, 
            TempData, 
            sw, 
            new HtmlHelperOptions()
        );
        viewResult.View.Render(viewContext, sw);
        return sw.GetStringBuilder().ToString();
    }
}

' Namespace: Microsoft.AspNetCore.Mvc
Imports Microsoft.AspNetCore.Mvc
' Namespace: IronPdf
Imports IronPdf
' Namespace: System.Threading.Tasks
Imports System.Threading.Tasks
' Namespace: System.IO
Imports System.IO
' Namespace: System
Imports System

' ASP.NET Core MVC Controller
Public Class ReportController
	Inherits Controller

	Private ReadOnly _pdfRenderer As ChromePdfRenderer

	Public Sub New()
		_pdfRenderer = New ChromePdfRenderer()
	End Sub

	Public Async Function DownloadReport(ByVal reportId As Integer) As Task(Of IActionResult)
		' Get your report data
		Dim reportData = Await GetReportData(reportId)

		' Render view to HTML string
		Dim html = Await RenderViewToStringAsync("Reports/MonthlyReport", reportData)

		' Convert HTML content to PDF
		Dim pdf = _pdfRenderer.RenderHtmlAsPdf(html)

		' Return as file download
		Return File(pdf.BinaryData, "application/pdf", $"report-{reportId}-{DateTime.Now:yyyy-MM}.pdf")
	End Function

	Private Async Function RenderViewToStringAsync(ByVal viewName As String, ByVal model As Object) As Task(Of String)
		ViewData.Model = model
		Dim sw = New StringWriter()
		Dim viewResult = ViewEngines.Engines.FindPartialView(ControllerContext, viewName)
		Dim viewContext As New ViewContext(ControllerContext, viewResult.View, ViewData, TempData, sw, New HtmlHelperOptions())
		viewResult.View.Render(viewContext, sw)
		Return sw.GetStringBuilder().ToString()
	End Function
End Class

using IronPdf;
using System;

var renderer = new ChromePdfRenderer();

// Simple text header and footer with page numbers
renderer.RenderingOptions.TextHeader = new TextHeaderFooter
{
    Text = "Confidential Report - {date}",
    DrawDividerLine = true,
    Font = "Arial",
    FontSize = 12
};

renderer.RenderingOptions.TextFooter = new TextHeaderFooter
{
    Text = "Page {page} of {total-pages}",
    DrawDividerLine = true,
    Font = "Arial", 
    FontSize = 10,
    CenterText = true
};

// HTML headers for complex layouts with logos
renderer.RenderingOptions.HtmlHeader = new HtmlHeaderFooter
{
    Html = @"
        <div style='display: flex; justify-content: space-between; align-items: center; padding: 10px 40px;'>
            <img src='logo.png' style='height: 40px;' />
            <div style='text-align: center;'>
                <h2 style='margin: 0; color: #333;'>Annual Report 2024</h2>
                <p style='margin: 0; font-size: 12px; color: #666;'>Confidential</p>
            </div>
            <div style='text-align: right; font-size: 11px; color: #666;'>
                Generated: {date}<br/>
                Department: Finance
            </div>
        </div>",
    Height = 80,
    LoadStylesAndCSSFromMainHtmlDocument = true
};

// Create your PDF with professional headers/footers
var html = @"<h1>Financial Overview</h1><p>Report content here...</p>";
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("professional-report.pdf");

Imports IronPdf
Imports System

Private renderer = New ChromePdfRenderer()

' Simple text header and footer with page numbers
renderer.RenderingOptions.TextHeader = New TextHeaderFooter With {
	.Text = "Confidential Report - {date}",
	.DrawDividerLine = True,
	.Font = "Arial",
	.FontSize = 12
}

renderer.RenderingOptions.TextFooter = New TextHeaderFooter With {
	.Text = "Page {page} of {total-pages}",
	.DrawDividerLine = True,
	.Font = "Arial",
	.FontSize = 10,
	.CenterText = True
}

' HTML headers for complex layouts with logos
renderer.RenderingOptions.HtmlHeader = New HtmlHeaderFooter With {
	.Html = "
        <div style='display: flex; justify-content: space-between; align-items: center; padding: 10px 40px;'>
            <img src='logo.png' style='height: 40px;' />
            <div style='text-align: center;'>
                <h2 style='margin: 0; color: #333;'>Annual Report 2024</h2>
                <p style='margin: 0; font-size: 12px; color: #666;'>Confidential</p>
            </div>
            <div style='text-align: right; font-size: 11px; color: #666;'>
                Generated: {date}<br/>
                Department: Finance
            </div>
        </div>",
	.Height = 80,
	.LoadStylesAndCSSFromMainHtmlDocument = True
}

' Create your PDF with professional headers/footers
Dim html = "<h1>Financial Overview</h1><p>Report content here...</p>"
Dim pdf = renderer.RenderHtmlAsPdf(html)
pdf.SaveAs("professional-report.pdf")

var renderer = new ChromePdfRenderer();

// Configure page setup for professional printing
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Portrait;

// Set margins in millimeters for precise control
renderer.RenderingOptions.MarginTop = 25;
renderer.RenderingOptions.MarginBottom = 25;
renderer.RenderingOptions.MarginLeft = 20;
renderer.RenderingOptions.MarginRight = 20;

// Enable background colors and images (important for branding)
renderer.RenderingOptions.PrintHtmlBackgrounds = true;

// Use screen media type for vibrant colors
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Screen;

// Custom page size for special documents
renderer.RenderingOptions.SetCustomPaperSizeinMilimeters(210, 297); // A4

// Enable high-quality rendering
renderer.RenderingOptions.RenderQuality = 100; // 0-100 scale

Dim renderer = New ChromePdfRenderer()

' Configure page setup for professional printing
renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
renderer.RenderingOptions.PaperOrientation = PdfPaperOrientation.Portrait

' Set margins in millimeters for precise control
renderer.RenderingOptions.MarginTop = 25
renderer.RenderingOptions.MarginBottom = 25
renderer.RenderingOptions.MarginLeft = 20
renderer.RenderingOptions.MarginRight = 20

' Enable background colors and images (important for branding)
renderer.RenderingOptions.PrintHtmlBackgrounds = True

' Use screen media type for vibrant colors
renderer.RenderingOptions.CssMediaType = PdfCssMediaType.Screen

' Custom page size for special documents
renderer.RenderingOptions.SetCustomPaperSizeinMilimeters(210, 297) ' A4

' Enable high-quality rendering
renderer.RenderingOptions.RenderQuality = 100 ' 0-100 scale

var renderer = new ChromePdfRenderer();

// HTML with custom fonts and typography
var html = @"
    <html>
    <head>
        <link href='https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap' rel='stylesheet'>
        <style>
            @font-face {
                font-family: 'CustomBrand';
                src: url('BrandFont.ttf') format('truetype');
            }

            body {
                font-family: 'Roboto', Arial, sans-serif;
                font-size: 11pt;
                line-height: 1.6;
                color: #333;
            }

            h1 {
                font-family: 'CustomBrand', Georgia, serif;
                font-size: 28pt;
                color: #0066cc;
                letter-spacing: -0.5px;
            }

            .quote {
                font-style: italic;
                font-size: 14pt;
                color: #666;
                border-left: 4px solid #0066cc;
                padding-left: 20px;
                margin: 20px 0;
            }
        </style>
    </head>
    <body>
        <h1>Professional Document</h1>
        <p>This document demonstrates professional typography.</p>
        <div class='quote'>
            "Excellence in typography enhances readability and professionalism."
        </div>
    </body>
    </html>";

var pdf = renderer.RenderHtmlAsPdf(html, "Assets/Fonts");
pdf.SaveAs("typography-demo.pdf");

Dim renderer = New ChromePdfRenderer()

' HTML with custom fonts and typography
Dim html = "
    <html>
    <head>
        <link href='https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap' rel='stylesheet'>
        <style>
            @font-face {
                font-family: 'CustomBrand';
                src: url('BrandFont.ttf') format('truetype');
            }

            body {
                font-family: 'Roboto', Arial, sans-serif;
                font-size: 11pt;
                line-height: 1.6;
                color: #333;
            }

            h1 {
                font-family: 'CustomBrand', Georgia, serif;
                font-size: 28pt;
                color: #0066cc;
                letter-spacing: -0.5px;
            }

            .quote {
                font-style: italic;
                font-size: 14pt;
                color: #666;
                border-left: 4px solid #0066cc;
                padding-left: 20px;
                margin: 20px 0;
            }
        </style>
    </head>
    <body>
        <h1>Professional Document</h1>
        <p>This document demonstrates professional typography.</p>
        <div class='quote'>
            "Excellence in typography enhances readability [and] professionalism." </div> </body> </html>"

Dim pdf = renderer.RenderHtmlAsPdf(html, "Assets/Fonts")
pdf.SaveAs("typography-demo.pdf")

using IronPdf;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;

public class InvoiceGenerator
{
    private readonly ChromePdfRenderer _renderer;

    public InvoiceGenerator()
    {
        _renderer = new ChromePdfRenderer();
        ConfigureRenderer();
    }

    private void ConfigureRenderer()
    {
        // Professional page setup
        _renderer.RenderingOptions.PaperSize = PdfPaperSize.A4;
        _renderer.RenderingOptions.MarginTop = 25;
        _renderer.RenderingOptions.MarginBottom = 25;
        _renderer.RenderingOptions.MarginLeft = 25;
        _renderer.RenderingOptions.MarginRight = 25;
        _renderer.RenderingOptions.PrintHtmlBackgrounds = true;

        // Add footer with page numbers
        _renderer.RenderingOptions.TextFooter = new TextHeaderFooter
        {
            Text = "Page {page} of {total-pages} | Invoice generated on {date}",
            FontSize = 9,
            Font = "Arial",
            CenterText = true
        };
    }

    public void CreateInvoice(Invoice invoice)
    {
        var html = GenerateInvoiceHtml(invoice);
        var pdf = _renderer.RenderHtmlAsPdf(html);

        // Add metadata to the final document
        pdf.MetaData.Title = $"Invoice {invoice.Number}";
        pdf.MetaData.Author = "Your Company Name";
        pdf.MetaData.Subject = $"Invoice for {invoice.CustomerName}";
        pdf.MetaData.Keywords = "invoice, billing, payment";
        pdf.MetaData.CreationDate = DateTime.Now;

        // Save the PDF document
        var fileName = $"Invoice-{invoice.Number}.pdf";
        pdf.SaveAs(fileName);

        Console.WriteLine($"PDF generated successfully: {fileName}");
    }

    private string GenerateInvoiceHtml(Invoice invoice)
    {
        var itemsHtml = string.Join("", invoice.Items.Select(item => $@"
            <tr>
                <td style='padding: 12px; border-bottom: 1px solid #eee;'>{item.Description}</td>
                <td style='padding: 12px; border-bottom: 1px solid #eee; text-align: center;'>{item.Quantity}</td>
                <td style='padding: 12px; border-bottom: 1px solid #eee; text-align: right;'>${item.UnitPrice:F2}</td>
                <td style='padding: 12px; border-bottom: 1px solid #eee; text-align: right;'>${item.Total:F2}</td>
            </tr>"));

        return $@"
            <html>
            <head>
                <style>
                    * {{ box-sizing: border-box; }}
                    body {{ 
                        font-family: 'Segoe UI', Arial, sans-serif; 
                        line-height: 1.6;
                        color: #333;
                        margin: 0;
                        padding: 0;
                    }}
                    .invoice-container {{
                        max-width: 800px;
                        margin: 0 auto;
                        padding: 40px;
                    }}
                    .invoice-header {{
                        display: flex;
                        justify-content: space-between;
                        margin-bottom: 40px;
                        padding-bottom: 20px;
                        border-bottom: 3px solid #0066cc;
                    }}
                    .company-details {{
                        flex: 1;
                    }}
                    .company-details h1 {{
                        color: #0066cc;
                        margin: 0 0 10px 0;
                        font-size: 28px;
                    }}
                    .invoice-details {{
                        flex: 1;
                        text-align: right;
                    }}
                    .invoice-details h2 {{
                        margin: 0 0 10px 0;
                        color: #666;
                        font-size: 24px;
                    }}
                    .invoice-number {{
                        font-size: 18px;
                        color: #0066cc;
                        font-weight: bold;
                    }}
                    .billing-section {{
                        display: flex;
                        justify-content: space-between;
                        margin-bottom: 40px;
                    }}
                    .billing-box {{
                        flex: 1;
                        padding: 20px;
                        background: #f8f9fa;
                        border-radius: 8px;
                        margin-right: 20px;
                    }}
                    .billing-box:last-child {{
                        margin-right: 0;
                    }}
                    .billing-box h3 {{
                        margin: 0 0 15px 0;
                        color: #0066cc;
                        font-size: 16px;
                        text-transform: uppercase;
                        letter-spacing: 1px;
                    }}
                    .items-table {{
                        width: 100%;
                        border-collapse: collapse;
                        margin-bottom: 40px;
                    }}
                    .items-table th {{
                        background: #0066cc;
                        color: white;
                        padding: 12px;
                        text-align: left;
                        font-weight: 600;
                    }}
                    .items-table th:last-child {{
                        text-align: right;
                    }}
                    .totals-section {{
                        display: flex;
                        justify-content: flex-end;
                        margin-bottom: 40px;
                    }}
                    .totals-box {{
                        width: 300px;
                    }}
                    .total-row {{
                        display: flex;
                        justify-content: space-between;
                        padding: 8px 0;
                        border-bottom: 1px solid #eee;
                    }}
                    .total-row.final {{
                        border-bottom: none;
                        border-top: 2px solid #0066cc;
                        margin-top: 10px;
                        padding-top: 15px;
                        font-size: 20px;
                        font-weight: bold;
                        color: #0066cc;
                    }}
                    .payment-terms {{
                        background: #f8f9fa;
                        padding: 20px;
                        border-radius: 8px;
                        margin-bottom: 30px;
                    }}
                    .payment-terms h3 {{
                        margin: 0 0 10px 0;
                        color: #0066cc;
                    }}
                    .footer-note {{
                        text-align: center;
                        color: #666;
                        font-size: 14px;
                        margin-top: 40px;
                        padding-top: 20px;
                        border-top: 1px solid #eee;
                    }}
                </style>
            </head>
            <body>
                <div class='invoice-container'>
                    <div class='invoice-header'>
                        <div class='company-details'>
                            <h1>{invoice.CompanyName}</h1>
                            <p>{invoice.CompanyAddress}<br>
                            {invoice.CompanyCity}, {invoice.CompanyState} {invoice.CompanyZip}<br>
                            Phone: {invoice.CompanyPhone}<br>
                            Email: {invoice.CompanyEmail}</p>
                        </div>
                        <div class='invoice-details'>
                            <h2>INVOICE</h2>
                            <p class='invoice-number'>#{invoice.Number}</p>
                            <p><strong>Date:</strong> {invoice.Date:MMMM dd, yyyy}<br>
                            <strong>Due Date:</strong> {invoice.DueDate:MMMM dd, yyyy}</p>
                        </div>
                    </div>

                    <div class='billing-section'>
                        <div class='billing-box'>
                            <h3>Bill To</h3>
                            <p><strong>{invoice.CustomerName}</strong><br>
                            {invoice.CustomerAddress}<br>
                            {invoice.CustomerCity}, {invoice.CustomerState} {invoice.CustomerZip}<br>
                            {invoice.CustomerEmail}</p>
                        </div>
                        <div class='billing-box'>
                            <h3>Payment Information</h3>
                            <p><strong>Payment Terms:</strong> {invoice.PaymentTerms}<br>
                            <strong>Invoice Status:</strong> <span style='color: #ff6b6b;'>Unpaid</span><br>
                            <strong>Amount Due:</strong> ${invoice.Total:F2}</p>
                        </div>
                    </div>

                    <table class='items-table'>
                        <thead>
                            <tr>
                                <th>Description</th>
                                <th style='text-align: center;'>Quantity</th>
                                <th style='text-align: right;'>Unit Price</th>
                                <th style='text-align: right;'>Total</th>
                            </tr>
                        </thead>
                        <tbody>
                            {itemsHtml}
                        </tbody>
                    </table>

                    <div class='totals-section'>
                        <div class='totals-box'>
                            <div class='total-row'>
                                <span>Subtotal:</span>
                                <span>${invoice.Subtotal:F2}</span>
                            </div>
                            <div class='total-row'>
                                <span>Tax ({invoice.TaxRate:F0}%):</span>
                                <span>${invoice.Tax:F2}</span>
                            </div>
                            <div class='total-row final'>
                                <span>Total Due:</span>
                                <span>${invoice.Total:F2}</span>
                            </div>
                        </div>
                    </div>

                    <div class='payment-terms'>
                        <h3>Payment Terms & Conditions</h3>
                        <p>Payment is due within {invoice.PaymentTerms}. Late payments are subject to a 1.5% monthly service charge. 
                        Please make checks payable to {invoice.CompanyName} or pay online at {invoice.CompanyWebsite}.</p>
                    </div>

                    <div class='footer-note'>
                        <p>Thank you for your business! This invoice was generated automatically using our C# PDF generation system.</p>
                        <p>Questions? Contact us at {invoice.CompanyEmail} or {invoice.CompanyPhone}</p>
                    </div>
                </div>
            </body>
            </html>";
    }
}

// Invoice model classes
public class Invoice
{
    public string Number { get; set; }
    public DateTime Date { get; set; }
    public DateTime DueDate { get; set; }
    public string CompanyName { get; set; }
    public string CompanyAddress { get; set; }
    public string CompanyCity { get; set; }
    public string CompanyState { get; set; }
    public string CompanyZip { get; set; }
    public string CompanyPhone { get; set; }
    public string CompanyEmail { get; set; }
    public string CompanyWebsite { get; set; }
    public string CustomerName { get; set; }
    public string CustomerAddress { get; set; }
    public string CustomerCity { get; set; }
    public string CustomerState { get; set; }
    public string CustomerZip { get; set; }
    public string CustomerEmail { get; set; }
    public string PaymentTerms { get; set; }
    public List<InvoiceItem> Items { get; set; }
    public decimal Subtotal => Items.Sum(i => i.Total);
    public decimal TaxRate { get; set; }
    public decimal Tax => Subtotal * (TaxRate / 100);
    public decimal Total => Subtotal + Tax;
}

public class InvoiceItem
{
    public string Description { get; set; }
    public int Quantity { get; set; }
    public decimal UnitPrice { get; set; }
    public decimal Total => Quantity * UnitPrice;
}

// Usage example
var generator = new InvoiceGenerator();
var invoice = new Invoice
{
    Number = "INV-2024-001",
    Date = DateTime.Now,
    DueDate = DateTime.Now.AddDays(30),
    CompanyName = "Your Company Name",
    CompanyAddress = "123 Business Street",
    CompanyCity = "New York",
    CompanyState = "NY",
    CompanyZip = "10001",
    CompanyPhone = "(555) 123-4567",
    CompanyEmail = "billing@yourcompany.com",
    CompanyWebsite = "www.yourcompany.com",
    CustomerName = "Acme Corporation",
    CustomerAddress = "456 Client Avenue",
    CustomerCity = "Los Angeles",
    CustomerState = "CA",
    CustomerZip = "90001",
    CustomerEmail = "accounts@acmecorp.com",
    PaymentTerms = "Net 30",
    TaxRate = 8.5m,
    Items = new List<InvoiceItem>
    {
        new() { Description = "Professional Services - March 2024", Quantity = 40, UnitPrice = 125.00m },
        new() { Description = "Software License (Annual)", Quantity = 1, UnitPrice = 2400.00m },
        new() { Description = "Technical Support", Quantity = 10, UnitPrice = 150.00m }
    }
};

generator.CreateInvoice(invoice);

Imports IronPdf
Imports System
Imports System.Collections.Generic
Imports System.Globalization
Imports System.Linq

Public Class InvoiceGenerator
	Private ReadOnly _renderer As ChromePdfRenderer

	Public Sub New()
		_renderer = New ChromePdfRenderer()
		ConfigureRenderer()
	End Sub

	Private Sub ConfigureRenderer()
		' Professional page setup
		_renderer.RenderingOptions.PaperSize = PdfPaperSize.A4
		_renderer.RenderingOptions.MarginTop = 25
		_renderer.RenderingOptions.MarginBottom = 25
		_renderer.RenderingOptions.MarginLeft = 25
		_renderer.RenderingOptions.MarginRight = 25
		_renderer.RenderingOptions.PrintHtmlBackgrounds = True

		' Add footer with page numbers
		_renderer.RenderingOptions.TextFooter = New TextHeaderFooter With {
			.Text = "Page {page} of {total-pages} | Invoice generated on {date}",
			.FontSize = 9,
			.Font = "Arial",
			.CenterText = True
		}
	End Sub

	Public Sub CreateInvoice(ByVal invoice As Invoice)
		Dim html = GenerateInvoiceHtml(invoice)
		Dim pdf = _renderer.RenderHtmlAsPdf(html)

		' Add metadata to the final document
		pdf.MetaData.Title = $"Invoice {invoice.Number}"
		pdf.MetaData.Author = "Your Company Name"
		pdf.MetaData.Subject = $"Invoice for {invoice.CustomerName}"
		pdf.MetaData.Keywords = "invoice, billing, payment"
		pdf.MetaData.CreationDate = DateTime.Now

		' Save the PDF document
		Dim fileName = $"Invoice-{invoice.Number}.pdf"
		pdf.SaveAs(fileName)

		Console.WriteLine($"PDF generated successfully: {fileName}")
	End Sub

	Private Function GenerateInvoiceHtml(ByVal invoice As Invoice) As String
		Dim itemsHtml = String.Join("", invoice.Items.Select(Function(item) $"
            <tr>
                <td style='padding: 12px; border-bottom: 1px solid #eee;'>{item.Description}</td>
                <td style='padding: 12px; border-bottom: 1px solid #eee; text-align: center;'>{item.Quantity}</td>
                <td style='padding: 12px; border-bottom: 1px solid #eee; text-align: right;'>${item.UnitPrice:F2}</td>
                <td style='padding: 12px; border-bottom: 1px solid #eee; text-align: right;'>${item.Total:F2}</td>
            </tr>"))

		Return $"
            <html>
            <head>
                <style>
                    * {{ box-sizing: border-box; }}
                    body {{ 
                        font-family: 'Segoe UI', Arial, sans-serif; 
                        line-height: 1.6;
                        color: #333;
                        margin: 0;
                        padding: 0;
                    }}
                    .invoice-container {{
                        max-width: 800px;
                        margin: 0 auto;
                        padding: 40px;
                    }}
                    .invoice-header {{
                        display: flex;
                        justify-content: space-between;
                        margin-bottom: 40px;
                        padding-bottom: 20px;
                        border-bottom: 3px solid #0066cc;
                    }}
                    .company-details {{
                        flex: 1;
                    }}
                    .company-details h1 {{
                        color: #0066cc;
                        margin: 0 0 10px 0;
                        font-size: 28px;
                    }}
                    .invoice-details {{
                        flex: 1;
                        text-align: right;
                    }}
                    .invoice-details h2 {{
                        margin: 0 0 10px 0;
                        color: #666;
                        font-size: 24px;
                    }}
                    .invoice-number {{
                        font-size: 18px;
                        color: #0066cc;
                        font-weight: bold;
                    }}
                    .billing-section {{
                        display: flex;
                        justify-content: space-between;
                        margin-bottom: 40px;
                    }}
                    .billing-box {{
                        flex: 1;
                        padding: 20px;
                        background: #f8f9fa;
                        border-radius: 8px;
                        margin-right: 20px;
                    }}
                    .billing-box:last-child {{
                        margin-right: 0;
                    }}
                    .billing-box h3 {{
                        margin: 0 0 15px 0;
                        color: #0066cc;
                        font-size: 16px;
                        text-transform: uppercase;
                        letter-spacing: 1px;
                    }}
                    .items-table {{
                        width: 100%;
                        border-collapse: collapse;
                        margin-bottom: 40px;
                    }}
                    .items-table th {{
                        background: #0066cc;
                        color: white;
                        padding: 12px;
                        text-align: left;
                        font-weight: 600;
                    }}
                    .items-table th:last-child {{
                        text-align: right;
                    }}
                    .totals-section {{
                        display: flex;
                        justify-content: flex-end;
                        margin-bottom: 40px;
                    }}
                    .totals-box {{
                        width: 300px;
                    }}
                    .total-row {{
                        display: flex;
                        justify-content: space-between;
                        padding: 8px 0;
                        border-bottom: 1px solid #eee;
                    }}
                    .total-row.final {{
                        border-bottom: none;
                        border-top: 2px solid #0066cc;
                        margin-top: 10px;
                        padding-top: 15px;
                        font-size: 20px;
                        font-weight: bold;
                        color: #0066cc;
                    }}
                    .payment-terms {{
                        background: #f8f9fa;
                        padding: 20px;
                        border-radius: 8px;
                        margin-bottom: 30px;
                    }}
                    .payment-terms h3 {{
                        margin: 0 0 10px 0;
                        color: #0066cc;
                    }}
                    .footer-note {{
                        text-align: center;
                        color: #666;
                        font-size: 14px;
                        margin-top: 40px;
                        padding-top: 20px;
                        border-top: 1px solid #eee;
                    }}
                </style>
            </head>
            <body>
                <div class='invoice-container'>
                    <div class='invoice-header'>
                        <div class='company-details'>
                            <h1>{invoice.CompanyName}</h1>
                            <p>{invoice.CompanyAddress}<br>
                            {invoice.CompanyCity}, {invoice.CompanyState} {invoice.CompanyZip}<br>
                            Phone: {invoice.CompanyPhone}<br>
                            Email: {invoice.CompanyEmail}</p>
                        </div>
                        <div class='invoice-details'>
                            <h2>INVOICE</h2>
                            <p class='invoice-number'>#{invoice.Number}</p>
                            <p><strong>Date:</strong> {invoice.Date:=MMMM dd, yyyy}<br>
                            <strong>Due Date:</strong> {invoice.DueDate:=MMMM dd, yyyy}</p>
                        </div>
                    </div>

                    <div class='billing-section'>
                        <div class='billing-box'>
                            <h3>Bill To</h3>
                            <p><strong>{invoice.CustomerName}</strong><br>
                            {invoice.CustomerAddress}<br>
                            {invoice.CustomerCity}, {invoice.CustomerState} {invoice.CustomerZip}<br>
                            {invoice.CustomerEmail}</p>
                        </div>
                        <div class='billing-box'>
                            <h3>Payment Information</h3>
                            <p><strong>Payment Terms:</strong> {invoice.PaymentTerms}<br>
                            <strong>Invoice Status:</strong> <span style='color: #ff6b6b;'>Unpaid</span><br>
                            <strong>Amount Due:</strong> ${invoice.Total:F2}</p>
                        </div>
                    </div>

                    <table class='items-table'>
                        <thead>
                            <tr>
                                <th>Description</th>
                                <th style='text-align: center;'>Quantity</th>
                                <th style='text-align: right;'>Unit Price</th>
                                <th style='text-align: right;'>Total</th>
                            </tr>
                        </thead>
                        <tbody>
                            {itemsHtml}
                        </tbody>
                    </table>

                    <div class='totals-section'>
                        <div class='totals-box'>
                            <div class='total-row'>
                                <span>Subtotal:</span>
                                <span>${invoice.Subtotal:F2}</span>
                            </div>
                            <div class='total-row'>
                                <span>Tax ({invoice.TaxRate:F0}%):</span>
                                <span>${invoice.Tax:F2}</span>
                            </div>
                            <div class='total-row final'>
                                <span>Total Due:</span>
                                <span>${invoice.Total:F2}</span>
                            </div>
                        </div>
                    </div>

                    <div class='payment-terms'>
                        <h3>Payment Terms & Conditions</h3>
                        <p>Payment is due within {invoice.PaymentTerms}. Late payments are subject to a 1.5% monthly service charge. 
                        Please make checks payable to {invoice.CompanyName} or pay online at {invoice.CompanyWebsite}.</p>
                    </div>

                    <div class='footer-note'>
                        <p>Thank you for your business! This invoice was generated automatically using our C# PDF generation system.</p>
                        <p>Questions? Contact us at {invoice.CompanyEmail} or {invoice.CompanyPhone}</p>
                    </div>
                </div>
            </body>
            </html>"
	End Function
End Class

' Invoice model classes
Public Class Invoice
	Public Property Number() As String
	Public Property [Date]() As DateTime
	Public Property DueDate() As DateTime
	Public Property CompanyName() As String
	Public Property CompanyAddress() As String
	Public Property CompanyCity() As String
	Public Property CompanyState() As String
	Public Property CompanyZip() As String
	Public Property CompanyPhone() As String
	Public Property CompanyEmail() As String
	Public Property CompanyWebsite() As String
	Public Property CustomerName() As String
	Public Property CustomerAddress() As String
	Public Property CustomerCity() As String
	Public Property CustomerState() As String
	Public Property CustomerZip() As String
	Public Property CustomerEmail() As String
	Public Property PaymentTerms() As String
	Public Property Items() As List(Of InvoiceItem)
	Public ReadOnly Property Subtotal() As Decimal
		Get
			Return Items.Sum(Function(i) i.Total)
		End Get
	End Property
	Public Property TaxRate() As Decimal
	Public ReadOnly Property Tax() As Decimal
		Get
			Return Subtotal * (TaxRate / 100)
		End Get
	End Property
	Public ReadOnly Property Total() As Decimal
		Get
			Return Subtotal + Tax
		End Get
	End Property
End Class

Public Class InvoiceItem
	Public Property Description() As String
	Public Property Quantity() As Integer
	Public Property UnitPrice() As Decimal
	Public ReadOnly Property Total() As Decimal
		Get
			Return Quantity * UnitPrice
		End Get
	End Property
End Class

' Usage example
Private generator = New InvoiceGenerator()
Private invoice = New Invoice With {
	.Number = "INV-2024-001",
	.Date = DateTime.Now,
	.DueDate = DateTime.Now.AddDays(30),
	.CompanyName = "Your Company Name",
	.CompanyAddress = "123 Business Street",
	.CompanyCity = "New York",
	.CompanyState = "NY",
	.CompanyZip = "10001",
	.CompanyPhone = "(555) 123-4567",
	.CompanyEmail = "billing@yourcompany.com",
	.CompanyWebsite = "www.yourcompany.com",
	.CustomerName = "Acme Corporation",
	.CustomerAddress = "456 Client Avenue",
	.CustomerCity = "Los Angeles",
	.CustomerState = "CA",
	.CustomerZip = "90001",
	.CustomerEmail = "accounts@acmecorp.com",
	.PaymentTerms = "Net 30",
	.TaxRate = 8.5D,
	.Items = New List(Of InvoiceItem) From {
		New() {
			Description = "Professional Services - March 2024",
			Quantity = 40,
			UnitPrice = 125.00D
		},
		New() {
			Description = "Software License (Annual)",
			Quantity = 1,
			UnitPrice = 2400.00D
		},
		New() {
			Description = "Technical Support",
			Quantity = 10,
			UnitPrice = 150.00D
		}
	}
}

generator.CreateInvoice(invoice)

// Namespace: IronPdf
using IronPdf;
// Namespace: System
using System;

var renderer = new ChromePdfRenderer();

// Enable form creation from HTML
renderer.RenderingOptions.CreatePdfFormsFromHtml = true;

// Create an interactive form with various input types
var formHtml = @"
    <html>
    <head>
        <style>
            body { font-family: Arial, sans-serif; padding: 40px; }
            .form-group { margin-bottom: 20px; }
            label { display: block; margin-bottom: 5px; font-weight: bold; }
            input[type='text'], input[type='email'], select, textarea {
                width: 100%;
                padding: 8px;
                border: 1px solid #ccc;
                border-radius: 4px;
                font-size: 14px;
            }
            .checkbox-group { margin: 10px 0; }
            .submit-section { 
                margin-top: 30px; 
                padding-top: 20px; 
                border-top: 2px solid #0066cc; 
            }
        </style>
    </head>
    <body>
        <h1>Application Form</h1>
        <form>
            <div class='form-group'>
                <label for='fullName'>Full Name:</label>
                <input type='text' id='fullName' name='fullName' required />
            </div>

            <div class='form-group'>
                <label for='email'>Email Address:</label>
                <input type='email' id='email' name='email' required />
            </div>

            <div class='form-group'>
                <label for='department'>Department:</label>
                <select id='department' name='department'>
                    <option value=''>Select Department</option>
                    <option value='sales'>Sales</option>
                    <option value='marketing'>Marketing</option>
                    <option value='engineering'>Engineering</option>
                    <option value='hr'>Human Resources</option>
                </select>
            </div>

            <div class='form-group'>
                <label>Interests:</label>
                <div class='checkbox-group'>
                    <label><input type='checkbox' name='interests' value='training' /> Professional Training</label>
                    <label><input type='checkbox' name='interests' value='conferences' /> Industry Conferences</label>
                    <label><input type='checkbox' name='interests' value='certification' /> Certification Programs</label>
                </div>
            </div>

            <div class='form-group'>
                <label for='comments'>Additional Comments:</label>
                <textarea id='comments' name='comments' rows='4'></textarea>
            </div>

            <div class='submit-section'>
                <p><em>Please save this form and email to hr@company.com</em></p>
            </div>
        </form>
    </body>
    </html>";

// Create the PDF with form fields
var formPdf = renderer.RenderHtmlAsPdf(formHtml);

// Optionally pre-fill form fields programmatically
formPdf.Form.FindFormField("fullName").Value = "John Smith";
formPdf.Form.FindFormField("email").Value = "john.smith@example.com";
formPdf.Form.FindFormField("department").Value = "engineering";

// Save the interactive form
formPdf.SaveAs("application-form.pdf");

// You can also read and process submitted forms
var submittedPdf = PdfDocument.FromFile("submitted-form.pdf");
var name = submittedPdf.Form.FindFormField("fullName").Value;
var email = submittedPdf.Form.FindFormField("email").Value;
Console.WriteLine($"Form submitted by: {name} ({email})");

' Namespace: IronPdf
Imports IronPdf
' Namespace: System
Imports System

Private renderer = New ChromePdfRenderer()

' Enable form creation from HTML
renderer.RenderingOptions.CreatePdfFormsFromHtml = True

' Create an interactive form with various input types
Dim formHtml = "
    <html>
    <head>
        <style>
            body { font-family: Arial, sans-serif; padding: 40px; }
            .form-group { margin-bottom: 20px; }
            label { display: block; margin-bottom: 5px; font-weight: bold; }
            input[type='text'], input[type='email'], select, textarea {
                width: 100%;
                padding: 8px;
                border: 1px solid #ccc;
                border-radius: 4px;
                font-size: 14px;
            }
            .checkbox-group { margin: 10px 0; }
            .submit-section { 
                margin-top: 30px; 
                padding-top: 20px; 
                border-top: 2px solid #0066cc; 
            }
        </style>
    </head>
    <body>
        <h1>Application Form</h1>
        <form>
            <div class='form-group'>
                <label for='fullName'>Full Name:</label>
                <input type='text' id='fullName' name='fullName' required />
            </div>

            <div class='form-group'>
                <label for='email'>Email Address:</label>
                <input type='email' id='email' name='email' required />
            </div>

            <div class='form-group'>
                <label for='department'>Department:</label>
                <select id='department' name='department'>
                    <option value=''>Select Department</option>
                    <option value='sales'>Sales</option>
                    <option value='marketing'>Marketing</option>
                    <option value='engineering'>Engineering</option>
                    <option value='hr'>Human Resources</option>
                </select>
            </div>

            <div class='form-group'>
                <label>Interests:</label>
                <div class='checkbox-group'>
                    <label><input type='checkbox' name='interests' value='training' /> Professional Training</label>
                    <label><input type='checkbox' name='interests' value='conferences' /> Industry Conferences</label>
                    <label><input type='checkbox' name='interests' value='certification' /> Certification Programs</label>
                </div>
            </div>

            <div class='form-group'>
                <label for='comments'>Additional Comments:</label>
                <textarea id='comments' name='comments' rows='4'></textarea>
            </div>

            <div class='submit-section'>
                <p><em>Please save this form and email to hr@company.com</em></p>
            </div>
        </form>
    </body>
    </html>"

' Create the PDF with form fields
Dim formPdf = renderer.RenderHtmlAsPdf(formHtml)

' Optionally pre-fill form fields programmatically
formPdf.Form.FindFormField("fullName").Value = "John Smith"
formPdf.Form.FindFormField("email").Value = "john.smith@example.com"
formPdf.Form.FindFormField("department").Value = "engineering"

' Save the interactive form
formPdf.SaveAs("application-form.pdf")

' You can also read and process submitted forms
Dim submittedPdf = PdfDocument.FromFile("submitted-form.pdf")
Dim name = submittedPdf.Form.FindFormField("fullName").Value
Dim email = submittedPdf.Form.FindFormField("email").Value
Console.WriteLine($"Form submitted by: {name} ({email})")

// Namespace: IronPdf
using IronPdf;
// Namespace: IronPdf.Editing
using IronPdf.Editing;

var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf("<h1>Confidential Document</h1><p>Sensitive information...</p>");

// Apply password protection
pdf.SecuritySettings.UserPassword = "user123";      // Required to open
pdf.SecuritySettings.OwnerPassword = "owner456";    // Required to modify

// Set detailed permissions
pdf.SecuritySettings.AllowUserCopyPasteContent = false;
pdf.SecuritySettings.AllowUserAnnotations = false;
pdf.SecuritySettings.AllowUserFormData = true;
pdf.SecuritySettings.AllowUserPrinting = PrintPermissions.LowQualityPrint;

// Add digital signature for authenticity
pdf.SignWithFile(
    certificatePath: "certificate.pfx",
    certificatePassword: "certpass123",
    signingReason: "Document Approval",
    signingLocation: "New York, NY",
    signatureImage: new Signature("signature.png")
    {
        Width = 150,
        Height = 50
    }
);

// Apply redaction to hide sensitive information
pdf.RedactTextOnPage(
    pageIndex: 0,
    searchText: "SSN: ***-**-****",
    replacementText: "[REDACTED]",
    caseSensitive: false
);

// Save the secured PDF
pdf.SaveAs("secure-confidential.pdf");

' Namespace: IronPdf
Imports IronPdf
' Namespace: IronPdf.Editing
Imports IronPdf.Editing

Private renderer = New ChromePdfRenderer()
Private pdf = renderer.RenderHtmlAsPdf("<h1>Confidential Document</h1><p>Sensitive information...</p>")

' Apply password protection
pdf.SecuritySettings.UserPassword = "user123" ' Required to open
pdf.SecuritySettings.OwnerPassword = "owner456" ' Required to modify

' Set detailed permissions
pdf.SecuritySettings.AllowUserCopyPasteContent = False
pdf.SecuritySettings.AllowUserAnnotations = False
pdf.SecuritySettings.AllowUserFormData = True
pdf.SecuritySettings.AllowUserPrinting = PrintPermissions.LowQualityPrint

' Add digital signature for authenticity
pdf.SignWithFile(certificatePath:= "certificate.pfx", certificatePassword:= "certpass123", signingReason:= "Document Approval", signingLocation:= "New York, NY", signatureImage:= New Signature("signature.png") With {
	.Width = 150,
	.Height = 50
})

' Apply redaction to hide sensitive information
pdf.RedactTextOnPage(pageIndex:= 0, searchText:= "SSN: ***-**-****", replacementText:= "[REDACTED]", caseSensitive:= False)

' Save the secured PDF
pdf.SaveAs("secure-confidential.pdf")