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IronPDF vs `SautinSoft` PDF Focus .NET

Curtis Chau
Curtis Chau
Updated:

IronPDF excels at HTML-to-PDF conversion with complete web rendering support, while SautinSoft PDF Focus .NET specializes in converting existing PDFs to Word, Excel, and other formats. Choose based on whether you need PDF creation or PDF extraction capabilities.

What Are IronPDF and SautinSoft PDF Focus .NET?

PDF stands for Portable Document Format, a versatile file format that contains graphics, text, and other elements. These components form the foundation of modern PDFs, which emerged in the 1990s to enable information exchange across different computer systems.

This article compares two popular PDF libraries for .NET development:

Both libraries enable PDF file creation and manipulation within Microsoft .NET applications, including ASP.NET web applications and traditional Windows applications. This comparison examines their features and performance when converting and manipulating PDF files.

Both libraries support the Microsoft .NET framework.

What Makes SautinSoft PDF Focus .NET Different?

SautinSoft PDF Focus .NET assists developers in building applications that convert PDF documents to other formats. To convert PDF to Word in WinForms or WPF applications, add a reference to "SautinSoft.PdfFocus.dll" and write 3-4 lines of C# code.

Key features of SautinSoft PDF Focus .NET:

  • Converts PDF documents using the .NET Framework
  • Processes PDFs from Adobe and third-party creators
  • Includes built-in PDF parser
  • Generates HTML5 format documents:
    • HTML Fixed duplicates PDF layout with page structure
    • HTML Flowing enables editing and merging
  • Creates simple, readable HTML markup
  • Generates HTML with base64-encoded images
  • Provides complete conversion API

What Makes IronPDF Different?

IronPDF from Iron Software provides .NET developers with an efficient method to transform HTML web pages into PDF format. The library handles PDF document generation programmatically with minimal code.

IronPDF enables developers to add various elements to PDFs, including headers, footers, watermarks, and bookmarks.

Key features of IronPDF:

How Do I Install These PDF Libraries?

How Do I Download IronPDF Directly?

Download IronPDF.dll from the IronPDF NuGet Package and reference it in .NET projects. Access IronPDF classes through the IronPdf namespace. For advanced installation options, see the complete installation guide. The library supports Windows installations, Linux deployments, and macOS configurations.

How Do I Download SautinSoft PDF Focus .NET Directly?

Download SautinSoft.PdfFocus packages from the official website and reference them in .NET projects. Use SautinSoft.PdfFocus objects for document conversion.

What Are the Visual Studio Installation Steps?

How Do I Install SautinSoft in Visual Studio?

  • Launch Visual Studio
  • Create a new project (console application)
  • Install SautinSoft.PdfFocus using Manage NuGet Packages:
Visual Studio Code IDE interface showing a Java program with a right-click context menu highlighting the 'Manage NuGet Packages' option for easy package installation in a console application project
NuGet Package Manager showing `sautinsoft.pdffocus` version 8.2.1.18, a commercial PDF conversion library for .NET with detailed package information, dependencies, and pricing details displayed
  • Click Install to add SautinSoft.PdfFocus.dll to the project:
Visual Studio `IntelliSense` dropdown showing `SautinSoft` namespace components with PDFocus class selected for PDF processing and code completion assistance

How Do I Install IronPDF in Visual Studio?

Follow the same steps but search for IronPDF. See the installation guide for detailed instructions. For specific platforms, check guides for Windows, Linux, macOS, and Docker deployments. The library also supports Azure deployments and AWS Lambda functions.

NuGet Package Manager in Visual Studio displaying IronPDF and related packages with version numbers and download counts for easy comparison and selection

Add IronPDF as a project reference:

Visual Studio IDE showing IronPDF library integrated in a .NET project, with code example for HTML to PDF conversion and Solution Explorer displaying IronPDF reference successfully added

What Are the Pricing Options?

How Much Does IronPDF Cost?

IronPDF licensing comparison chart showing three tiers: Lite ($499), Professional ($999), and Unlimited ($2,999), with details on developer limits, location restrictions, and project allowances for each tier

How Much Does SautinSoft PDF Focus .NET Cost?

SautinSoft offers quality conversion at competitive prices. PDF Focus .NET costs less than competing products. HTML Edition starts at $299 USD, Total Edition from $778.

  • One-time purchase with lifetime license
  • One year unlimited support
  • Total — converts PDF to all formats ($778+)
  • Office — converts PDF to Word/Excel/Text ($599+)
  • Picasso — converts PDF to images ($599+)
  • HTML — converts PDF to HTML/XML ($299+)

What HTML to PDF Features Does IronPDF Support?

Which HTML Technologies Are Supported?

What Configuration Options Are Available?

What PDF Conversion Features Does SautinSoft Offer?

How Does PDF to Text Conversion Work?

PDF Focus .NET extracts text from PDF documents efficiently. Extract from entire documents or individual pages. The library delivers high-quality text without extra spaces between words and supports Unicode. Text layout maintains RTF appearance with proper line breaks and columns. For similar functionality in IronPDF, see the text extraction guide and PDF parsing tutorial. IronPDF also supports UTF-8 encoding for international languages.

How Does PDF to DOCX Conversion Work?

SautinSoft PDF Focus includes its own PDF reader and DOCX renderer. Convert PDF documents to DOCX without Microsoft Office or Adobe Acrobat dependencies. The resulting DOCX contains paragraphs, columns, tables, hyperlinks, images, and page breaks.

PDF Focus .NET uses AI features to recognize and recreate tables with rows and cells, converting PDF visual tables into actual document tables. For the reverse process, IronPDF offers DOCX to PDF conversion with mail merge support. IronPDF also provides RTF to PDF conversion and HTML to PDF conversion capabilities.

Which .NET Frameworks and Platforms Are Supported?

What Platforms Does IronPDF Support?

What Platforms Does SautinSoft PDF Focus Support?

  • .NET Framework 4.0 or higher
  • .NET Framework and .NET Core 2.0
  • Written in managed C#
  • Multi-platform compatible
  • Cloud platform support:
    • AWS
    • Docker
    • SharePoint
    • Google Cloud Platform## How Do I Implement Common PDF Tasks?

How Do I Create PDFs with IronPDF?

How Do I Convert HTML to PDF?

Converting HTML to PDF is a prevalent task in .NET applications. For more complex scenarios, refer to the HTML rendering settings and pixel-perfect rendering guides. IronPDF also supports HTML file to PDF conversion and HTML ZIP file processing.

// PM> Install-Package IronPdf

using IronPdf;

var Renderer = new IronPdf.ChromePdfRenderer();
// Render HTML string as a PDF document and save it
Renderer.RenderHtmlAsPdf("<h1>Test HTML with images</h1>").SaveAs("test_image.pdf");

/****** Advanced ******/

// Render HTML and external assets into a PDF
// BasePath is used to resolve relative paths to assets like images and styles
var PDF = Renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\");
PDF.SaveAs("html-with-assets.pdf");
// PM> Install-Package IronPdf

using IronPdf;

var Renderer = new IronPdf.ChromePdfRenderer();
// Render HTML string as a PDF document and save it
Renderer.RenderHtmlAsPdf("<h1>Test HTML with images</h1>").SaveAs("test_image.pdf");

/****** Advanced ******/

// Render HTML and external assets into a PDF
// BasePath is used to resolve relative paths to assets like images and styles
var PDF = Renderer.RenderHtmlAsPdf("<img src='icons/iron.png'>", @"C:\site\assets\");
PDF.SaveAs("html-with-assets.pdf");
$vbLabelText   $csharpLabel

For more examples, see the HTML string to PDF guide, file to PDF tutorial, and responsive HTML rendering documentation.

How Do I Convert URLs to PDF?

Converting web pages to PDF is useful for archiving, reporting, and documentation. For authenticated pages, see the login credentials guide and TLS authentication tutorial. IronPDF supports Kerberos authentication and HTTP request headers.

// PM> Install-Package IronPdf

using IronPdf;

// Create a new renderer instance
IronPdf.ChromePdfRenderer Renderer = new IronPdf.ChromePdfRenderer();

// Configure rendering options for better output
Renderer.RenderingOptions.PrintHtmlBackgrounds = true;
Renderer.RenderingOptions.PaperOrientation = PdfPrintOptions.PdfPaperOrientation.Portrait;
Renderer.RenderingOptions.MarginTop = 20;
Renderer.RenderingOptions.MarginBottom = 20;

// Render a PDF from a URL
var Pdf = Renderer.RenderUrlAsPdf("___PROTECTED_URL_259___");

// Save the PDF file
Pdf.SaveAs("url.pdf");  
// see also Pdf.Stream for handling PDF data directly from memory
// PM> Install-Package IronPdf

using IronPdf;

// Create a new renderer instance
IronPdf.ChromePdfRenderer Renderer = new IronPdf.ChromePdfRenderer();

// Configure rendering options for better output
Renderer.RenderingOptions.PrintHtmlBackgrounds = true;
Renderer.RenderingOptions.PaperOrientation = PdfPrintOptions.PdfPaperOrientation.Portrait;
Renderer.RenderingOptions.MarginTop = 20;
Renderer.RenderingOptions.MarginBottom = 20;

// Render a PDF from a URL
var Pdf = Renderer.RenderUrlAsPdf("___PROTECTED_URL_259___");

// Save the PDF file
Pdf.SaveAs("url.pdf");  
// see also Pdf.Stream for handling PDF data directly from memory
$vbLabelText   $csharpLabel

For advanced URL rendering options, see the URL to PDF guide, rendering options documentation, and URL conversion example.

How Do I Convert Images to PDF?

Converting images to PDF is ideal for creating photo albums, portfolios, or document archives. IronPDF supports multi-frame TIFF conversion and Azure Blob Storage images. The library also handles embedded images and bitmaps.

// PM> Install-Package IronPdf
using IronPdf;
using System.IO;
using System.Linq;

// Get all image files (.jpg or .jpeg) from a specific directory
var ImageFiles = Directory.EnumerateFiles(@"C:\project\test").Where(f => f.EndsWith(".jpg") || f.EndsWith(".jpeg"));

// Convert the images to a single PDF document and save it
ImageToPdfConverter.ImageToPdf(ImageFiles).SaveAs(@"C:\project\testing.pdf");

// Use PdfDocument.RasterizeToImageFiles() to flatten a PDF back into images or thumbnails
// PM> Install-Package IronPdf
using IronPdf;
using System.IO;
using System.Linq;

// Get all image files (.jpg or .jpeg) from a specific directory
var ImageFiles = Directory.EnumerateFiles(@"C:\project\test").Where(f => f.EndsWith(".jpg") || f.EndsWith(".jpeg"));

// Convert the images to a single PDF document and save it
ImageToPdfConverter.ImageToPdf(ImageFiles).SaveAs(@"C:\project\testing.pdf");

// Use PdfDocument.RasterizeToImageFiles() to flatten a PDF back into images or thumbnails
$vbLabelText   $csharpLabel

For more image handling, see the image to PDF guide, rasterization tutorial, and image optimization examples.

How Do I Convert PDFs with SautinSoft?

How Do I Convert PDF to Word Documents?

Converting PDFs to Word documents while maintaining formatting:

using System;
using System.IO;

string pdfFile = @"c:\test.pdf";
MemoryStream docxStream = new MemoryStream();

SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

// Open a PDF file from disk into a FileStream
using (FileStream pdfStream = new FileStream(pdfFile, FileMode.Open, FileAccess.Read))
{
    f.OpenPdf(pdfStream);

    if (f.PageCount > 0)
    {
        // Set conversion options
        f.WordOptions.Format = SautinSoft.PdfFocus.CWordOptions.eWordDocument.Docx;
        f.WordOptions.RenderMode = SautinSoft.PdfFocus.CWordOptions.eRenderMode.Flowing;

        // Convert the PDF to a Word document and store it in docxStream
        int res = f.ToWord(docxStream);

        // Save the DOCX to disk if conversion was successful
        if (res == 0)
        {
            string docxFile = Path.ChangeExtension(pdfFile, ".docx");
            File.WriteAllBytes(docxFile, docxStream.ToArray());
            System.Diagnostics.Process.Start(docxFile);
        }
    }
}
using System;
using System.IO;

string pdfFile = @"c:\test.pdf";
MemoryStream docxStream = new MemoryStream();

SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();

// Open a PDF file from disk into a FileStream
using (FileStream pdfStream = new FileStream(pdfFile, FileMode.Open, FileAccess.Read))
{
    f.OpenPdf(pdfStream);

    if (f.PageCount > 0)
    {
        // Set conversion options
        f.WordOptions.Format = SautinSoft.PdfFocus.CWordOptions.eWordDocument.Docx;
        f.WordOptions.RenderMode = SautinSoft.PdfFocus.CWordOptions.eRenderMode.Flowing;

        // Convert the PDF to a Word document and store it in docxStream
        int res = f.ToWord(docxStream);

        // Save the DOCX to disk if conversion was successful
        if (res == 0)
        {
            string docxFile = Path.ChangeExtension(pdfFile, ".docx");
            File.WriteAllBytes(docxFile, docxStream.ToArray());
            System.Diagnostics.Process.Start(docxFile);
        }
    }
}
$vbLabelText   $csharpLabel

IronPDF provides similar document handling through memory streams and export capabilities.

How Do I Convert PDF to Images?

Converting PDFs to images allows for thumbnail generation and preview functionality. IronPDF offers similar functionality with PDF rasterization, quality preservation, and memory stream processing.

using System;
using SautinSoft;

PdfFocus f = new PdfFocus();
f.OpenPdf(@"C:\Computer\testpdf");

if (f.PageCount > 0)
{
    // Set conversion options for images
    f.ImageOptions.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
    f.ImageOptions.Dpi = 200;
    f.ImageOptions.JpegQuality = 90;

    // Save all PDF pages as JPEG images
    for (int page = 1; page <= f.PageCount; page++)
    {
        f.ToImage(@"C:\Pictures\page_" + page + ".jpg", page);
    }
}
using System;
using SautinSoft;

PdfFocus f = new PdfFocus();
f.OpenPdf(@"C:\Computer\testpdf");

if (f.PageCount > 0)
{
    // Set conversion options for images
    f.ImageOptions.ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg;
    f.ImageOptions.Dpi = 200;
    f.ImageOptions.JpegQuality = 90;

    // Save all PDF pages as JPEG images
    for (int page = 1; page <= f.PageCount; page++)
    {
        f.ToImage(@"C:\Pictures\page_" + page + ".jpg", page);
    }
}
$vbLabelText   $csharpLabel

IronPDF offers advanced image handling including PDF to image conversion, PDF flattening, and bitmap drawing.

How Do I Convert PDF to HTML?

For PDF to HTML conversion in IronPDF, see the PDF to HTML guide and conversion example:

using System;
using SautinSoft;

PdfFocus f = new PdfFocus();
f.OpenPdf(@"c:\test.pdf");

if (f.PageCount > 0)
{
    // Set HTML conversion options
    f.HtmlOptions.IncludeImageInHtml = true;
    f.HtmlOptions.Title = "Converted from PDF";
    f.HtmlOptions.RenderMode = PdfFocus.CHtmlOptions.eHtmlRenderMode.Flowing;

    // Convert PDF to HTML
    int result = f.ToHtml(@"c:\output.html");

    // Open the resulting HTML document in the default browser
    if (result == 0)
    {
        System.Diagnostics.Process.Start(@"c:\output.html");
    }
}
using System;
using SautinSoft;

PdfFocus f = new PdfFocus();
f.OpenPdf(@"c:\test.pdf");

if (f.PageCount > 0)
{
    // Set HTML conversion options
    f.HtmlOptions.IncludeImageInHtml = true;
    f.HtmlOptions.Title = "Converted from PDF";
    f.HtmlOptions.RenderMode = PdfFocus.CHtmlOptions.eHtmlRenderMode.Flowing;

    // Convert PDF to HTML
    int result = f.ToHtml(@"c:\output.html");

    // Open the resulting HTML document in the default browser
    if (result == 0)
    {
        System.Diagnostics.Process.Start(@"c:\output.html");
    }
}
$vbLabelText   $csharpLabel

IronPDF also supports XML to PDF conversion, Markdown to PDF, and XAML to PDF for various document workflows.

What Are the Key Advantages of Each Library?

Why Choose IronPDF?

Why Choose SautinSoft PDF Focus?

  • Requires 3-4 lines of C# code
  • Offers APIs for multiple format conversions
  • Standalone library without dependencies
  • One-time payment for lifetime use
  • Handles multipage TIFF files
  • Free technical support for one year

Why Prefer IronPDF Over SautinSoft?

SautinSoft adds trial notices and random "Trial" text to output documents. In contrast, IronPDF offers unlimited trial features without watermarks.

IronPDF costs approximately half the price of comparable SautinSoft licenses. For detailed pricing comparisons with other competitors, see pages on Aspose alternatives, iText alternatives, Syncfusion alternatives, QuestPDF comparisons, and Apryse evaluations.

Comparing both libraries reveals that IronPDF offers superior reliability at nearly half the cost, with better support and more features. IronPDF provides complete documentation, code examples, tutorials, and API reference for all features.

Additionally, IronPDF provides:

Which PDF Library Should You Choose?

This comparison examined IronPDF and SautinSoft PDF Focus .NET. IronPDF converts web forms, HTML pages, and web content to PDF within .NET applications. SautinSoft PDF Focus converts existing PDFs to formats like DOCX, images, and HTML. Testing revealed that IronPDF provides unlimited trial features without product labels on output.

IronPDF delivers superior performance and extensive features for developers working with Portable Document Format. The library includes complete support and documentation for improved feature utilization. For more information, visit the features page, try the live demos, or explore the changelog for the latest updates. Review the milestones including Chrome rendering, compatibility improvements, PDF/A support, PDFium DOM, and stability enhancements. For specific issues, consult the troubleshooting guides or request engineering support.

Explore the tutorials including creating PDFs, editing PDFs, converting PDFs, organizing PDFs, signing and securing PDFs, and API reference for detailed implementation guidance.

Please noteSautinSoft PDF Focus .NET is a registered trademark of its respective owner. This site is not affiliated with, endorsed by, or sponsored by SautinSoft PDF Focus .NET. All product names, logos, and brands are property of their respective owners. Comparisons are for informational purposes only and reflect publicly available information at the time of writing.

Frequently Asked Questions

How can I convert HTML to PDF in C#?

You can use IronPDF's RenderHtmlAsPdf method to convert HTML strings into PDFs. Additionally, you can convert entire HTML files into PDFs using RenderHtmlFileAsPdf.

What are the advantages of using IronPDF over SautinSoft PDF Focus?

IronPDF offers more cost-effective pricing, superior performance, no trial labels on outputs, and extensive features such as easy installation, better support, and the ability to handle complex layouts and JavaScript.

How do I install IronPDF in a .NET project?

IronPDF can be installed via the NuGet package manager in Visual Studio. Simply search for IronPDF, and add it as a project reference to start using its features.

Does IronPDF support cross-platform functionality?

Yes, IronPDF is compatible with macOS, Linux, and Windows. It supports various .NET frameworks and can be used in cloud hosting environments.

What HTML to PDF features does IronPDF provide?

IronPDF supports HTML4, HTML5, CSS3, JavaScript, Angular, React, responsive layouts, and external stylesheets, allowing for comprehensive HTML to PDF conversion.

What are the key features of SautinSoft PDF Focus?

SautinSoft PDF Focus allows conversion of PDFs to various formats like Word, Excel, and HTML. It supports high-quality text extraction and preserves layout integrity.

What is a significant drawback of using SautinSoft PDF Focus?

The trial version of SautinSoft PDF Focus adds trial notices to the output, which can be a limitation for developers seeking a clean output. IronPDF does not have this limitation.

What is the pricing structure for IronPDF?

IronPDF offers competitive pricing with unlimited use for development, a 30-day money-back guarantee, and free one-year support, making it a cost-effective choice.

Curtis Chau
Curtis Chau
  Chat with engineering team now
Technical Writer

Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.

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