How to Create PDF Using Aspose C# and IronPDF

Installing Aspose PDF via Package Manager Console

Open the Package Manager Console in Visual Studio and run the following command:

PM> Install-Package Aspose.PDF

PM> Install-Package Aspose.PDF

IRON VB CONVERTER ERROR developers@ironsoftware.com

Installing IronPDF

Use the same method to install the package IronPDF:

PM> Install-Package IronPdf

PM> Install-Package IronPdf

Note: IronPDF includes an embedded Chrome engine for superior HTML rendering, with support for Windows, Linux, macOS, Docker containers, and cloud platforms.

Create a PDF Using Aspose PDF for .NET API

using Aspose.Pdf;
using Aspose.Pdf.Text;
// Create new instance of Document class
var document = new Document();
// Add pages to the document object
var page = document.Pages.Add();
// Create new TextFragment with Hello World text
var textFragment = new TextFragment("Hello World!");
textFragment.TextState.FontSize = 24;
// Add text to paragraphs collection
page.Paragraphs.Add(textFragment);
// Save the generated PDF document
document.Save("output.pdf");

using Aspose.Pdf;
using Aspose.Pdf.Text;
// Create new instance of Document class
var document = new Document();
// Add pages to the document object
var page = document.Pages.Add();
// Create new TextFragment with Hello World text
var textFragment = new TextFragment("Hello World!");
textFragment.TextState.FontSize = 24;
// Add text to paragraphs collection
page.Paragraphs.Add(textFragment);
// Save the generated PDF document
document.Save("output.pdf");

IRON VB CONVERTER ERROR developers@ironsoftware.com

This source code creates PDF documents by building a document object model. You create a new document, add pages to the collection, and then add content to those pages. The Document class provides the foundation, while paragraphs hold your content. For testing purposes, this Hello World example demonstrates the basic process.

Output

Creating PDFs with IronPDF

using IronPdf;
// Create new instance of ChromePdfRenderer
var renderer = new ChromePdfRenderer();
// Convert HTML string to PDF file
var html = "<h1>Hello World!</h1>";
var pdf = renderer.RenderHtmlAsPdf(html);
// Save PDF files using SaveAs method
pdf.SaveAs("output.pdf");

using IronPdf;
// Create new instance of ChromePdfRenderer
var renderer = new ChromePdfRenderer();
// Convert HTML string to PDF file
var html = "<h1>Hello World!</h1>";
var pdf = renderer.RenderHtmlAsPdf(html);
// Save PDF files using SaveAs method
pdf.SaveAs("output.pdf");

IRON VB CONVERTER ERROR developers@ironsoftware.com

IronPDF takes a different approach to create a PDF - it renders HTML directly to PDF format using Chrome. This API allows you to convert web content and implement complex layouts easily. The library handles all rendering complexities, making it simpler to accomplish professional results.

Output

Invoice with Aspose PDF

using Aspose.Pdf;
using Aspose.Pdf.Text;
// Create new Document instance
var document = new Document();
var page = document.Pages.Add();
// Add title text
var title = new TextFragment("INVOICE");
title.TextState.FontSize = 28;
title.HorizontalAlignment = HorizontalAlignment.Center;
// Add to paragraphs
page.Paragraphs.Add(title);
// Create table object for invoice items
var table = new Table();
table.ColumnWidths = "200 100 100";
// Add header row to table
var headerRow = table.Rows.Add();
headerRow.Cells.Add("Description");
headerRow.Cells.Add("Quantity");
headerRow.Cells.Add("Price");
// Add data rows
var dataRow = table.Rows.Add();
dataRow.Cells.Add("Product A");
dataRow.Cells.Add("2");
dataRow.Cells.Add("$50.00");
// Add table to page paragraphs
page.Paragraphs.Add(table);
// Save the PDF document
document.Save("invoice.pdf");

using Aspose.Pdf;
using Aspose.Pdf.Text;
// Create new Document instance
var document = new Document();
var page = document.Pages.Add();
// Add title text
var title = new TextFragment("INVOICE");
title.TextState.FontSize = 28;
title.HorizontalAlignment = HorizontalAlignment.Center;
// Add to paragraphs
page.Paragraphs.Add(title);
// Create table object for invoice items
var table = new Table();
table.ColumnWidths = "200 100 100";
// Add header row to table
var headerRow = table.Rows.Add();
headerRow.Cells.Add("Description");
headerRow.Cells.Add("Quantity");
headerRow.Cells.Add("Price");
// Add data rows
var dataRow = table.Rows.Add();
dataRow.Cells.Add("Product A");
dataRow.Cells.Add("2");
dataRow.Cells.Add("$50.00");
// Add table to page paragraphs
page.Paragraphs.Add(table);
// Save the PDF document
document.Save("invoice.pdf");

IRON VB CONVERTER ERROR developers@ironsoftware.com

The Aspose PDF .NET API requires building each element programmatically. You create the document object, add pages, and then add content to the paragraphs collection. This gives you precise control but requires more code to accomplish complex layouts.

Invoice with IronPDF

using IronPdf;
var renderer = new ChromePdfRenderer();
// Configure PDF output settings
renderer.RenderingOptions.MarginTop = 25;
renderer.RenderingOptions.MarginBottom = 25;
// HTML string with invoice content
var html = @"
<html>
<head>
    <style>
        table { width: 100%; }
        th, td { padding: 8px; }
    </style>
</head>
<body>
    <h1>INVOICE</h1>
    <table>
        <tr>
            <th>Description</th>
            <th>Quantity</th>
            <th>Price</th>
        </tr>
        <tr>
            <td>Product A</td>
            <td>2</td>
            <td>$50.00</td>
        </tr>
    </table>
</body>
</html>";
// Generate PDF from HTML
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("invoice.pdf");

using IronPdf;
var renderer = new ChromePdfRenderer();
// Configure PDF output settings
renderer.RenderingOptions.MarginTop = 25;
renderer.RenderingOptions.MarginBottom = 25;
// HTML string with invoice content
var html = @"
<html>
<head>
    <style>
        table { width: 100%; }
        th, td { padding: 8px; }
    </style>
</head>
<body>
    <h1>INVOICE</h1>
    <table>
        <tr>
            <th>Description</th>
            <th>Quantity</th>
            <th>Price</th>
        </tr>
        <tr>
            <td>Product A</td>
            <td>2</td>
            <td>$50.00</td>
        </tr>
    </table>
</body>
</html>";
// Generate PDF from HTML
var pdf = renderer.RenderHtmlAsPdf(html);
pdf.SaveAs("invoice.pdf");

IRON VB CONVERTER ERROR developers@ironsoftware.com

With IronPDF, you write standard HTML and the system handles rendering. This method makes it easier to create PDF files with professional layouts. You can reference external stylesheets, add images, and include links.

Output

Converting Web Pages to PDF Files Using IronPDF

using IronPdf;
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderUrlAsPdf("https://ironpdf.com");
pdf.SaveAs("website.pdf");

using IronPdf;
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderUrlAsPdf("https://ironpdf.com");
pdf.SaveAs("website.pdf");

IRON VB CONVERTER ERROR developers@ironsoftware.com

Adding Security to Generated PDF

using IronPdf;
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);
// Implement security settings
pdf.SecuritySettings.UserPassword = "user123";
pdf.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.FullPrintRights;
// Save secured file
pdf.SaveAs("secured.pdf");

using IronPdf;
var renderer = new ChromePdfRenderer();
var pdf = renderer.RenderHtmlAsPdf(html);
// Implement security settings
pdf.SecuritySettings.UserPassword = "user123";
pdf.SecuritySettings.AllowUserPrinting = IronPdf.Security.PdfPrintSecurity.FullPrintRights;
// Save secured file
pdf.SaveAs("secured.pdf");

IRON VB CONVERTER ERROR developers@ironsoftware.com

IronPDF provides intuitive methods to add security, headers, footers, and other features to your PDF documents. You can also delete pages, merge files, or extract content.

Output

When to Use IronPDF

IronPDF excels when you:

• Need to convert HTML to PDF format
• Want simpler code and faster development
• Require JavaScript execution
• Need cross-platform support
• Deploy to Docker or cloud environment

When to Use Aspose PDF

Aspose PDF for .NET applications works well when:

• Creating PDFs from scratch programmatically
• Need granular control over document object model
• Working with complex PDF manipulations
• Importing existing PDF files for processing