PDF Conversion Library for .NET: Convert Word, Excel, PowerPoint, HTML, Images & XPS easily

Easy PDF conversion in minutes

Tired of broken documents, layout changes, or file formats causing chaos? What if you could turn around Say, Superior, PowerPoint, HTML, pictureand more into flawless PDFs, instantly, with just a few lines of code?

That’s exactly what Syncfusion is all about^® The .NET PDF conversion library makes it possible.

Whether you’re building applications, automating reports, or scaling document workflows, these powerful solutions eliminate complexity and deliver better results. Pixel-perfect PDFs every time.

• Easily convert Word, Excel, PowerPoint, HTML, images and XPS to PDF.
• Maintain layout, fonts, charts, and formatting without surprises.
• Get professional quality output with minimal code.
• Build faster with developer-friendly and powerful APIs.

The result? Fewer bugs, faster development, and docs work anywhere.

Supported document types for PDF conversion

Syncfusion’s PDF Conversion Library supports converting various document formats into high-quality PDFs. Each format uses a special library to ensure accurate rendering, layout integrity, and performance.

The following are the supported document types and their associated libraries:

In the following sections, you’ll find step-by-step instructions and code examples for each conversion type. This approach ensures optimal performance and proper rendering for every document format, whether you’re creating a web, desktop, or mobile application.

Convert Word documents to PDF

Word documents often cause formatting issues across devices. Converting it to PDF ensures:

• Pixel perfect layout.
• Retained fonts, styles, tables, headers, footers, and images.

Syncfusion provides a powerful Word-to-PDF conversion API that ensures your documents maintain proper layout, formatting, and visual consistency across all devices.

1. Install the NuGet package Syncfusion.DocIORenderer.NET from the NuGet Gallery as a reference for your project.
2. Then, check out the following code example to convert a Word document to PDF.

   // Instantiation of DocIORenderer for Word to PDF conversion
   using (DocIORenderer render = new DocIORenderer())
   {
       // Converts Word document into PDF document
       using (PdfDocument pdfDocument = render.ConvertToPDF(document))
       {
           // Saves the PDF document to MemoryStream
           MemoryStream stream = new MemoryStream();
           pdfDocument.Save(stream);
   
           // Save and launch the PDF document
           SaveService saveService = new();
           saveService.SaveAndView("Sample.pdf", "application/pdf", stream);
       }
   }

Notes: This example works in .NET FIXED, ASP.NET Coreand other .NET platforms. For platform-specific settings, see our documentation.

See the following output image.

Use cases: A reliable Word-to-PDF conversion library is essential for contracts, reports, resumes, and legal documents where consistency is a priority.

Convert Excel to PDF

Excel files often contain complicated formula, chartAnd large data sets which can break if shared. Our Excel-to-PDF conversion API guarantees accurate rendering of tables, charts, and cell formats.

Use cases: You can make it perfect for financial reports, invoices, and compliance documents, where data quality is paramount.

Please follow these steps to convert Excel documents to PDF:

1. Install the Syncfusion.XlsIORenderer.NET NuGet package as a reference for your project.
2. Then, run the following code sample to convert the Excel document to PDF.

   {
       // Open the workbook
       IWorkbook workbook = application.Workbooks.Open(inputStream);
   
       // Instantiate the Excel to PDF renderer
       XlsIORenderer renderer = new XlsIORenderer();
   
       // Convert Excel document into PDF document
       PdfDocument pdfDocument = renderer.ConvertToPDF(workbook);
   
       // Create the MemoryStream to save the converted PDF
       MemoryStream pdfStream = new MemoryStream();
       pdfDocument.Save(pdfStream);
       pdfStream.Position = 0;
   
       // Save and launch the PDF document
       SaveService saveService = new();
       saveService.SaveAndView("Sample.pdf", "application/pdf", pdfStream);
   }

Notes: This example works on .NET MAUI, ASP.NET Core, and other .NET platforms.

Explore the rich features of Syncfusion’s PDF Library through step-by-step instructions and best practices.

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Convert PowerPoint to PDF

PowerPoint presentations are great for meetings, but not for sharing static content. You can easily convert PowerPoint slides to PDF to create non-editable slides while preserving design, pictureAnd layout.

Use cases: This will be very helpful training materials, proposalAnd leafletensuring your content remains consistent and secure across platforms.

Steps to follow:

1. Install the Syncfusion.PresentationRenderer.NET NuGet package as a reference for your project.
2. Run the following code sample to convert a PowerPoint presentation to PDF.

   // Convert the PowerPoint document to a PDF document
   using (PdfDocument pdfDocument = PresentationToPdfConverter.Convert(pptxDoc))
   {
       // Save the converted PDF document to a MemoryStream
       MemoryStream pdfStream = new MemoryStream();
       pdfDocument.Save(pdfStream);
       pdfStream.Position = 0;
   
       // Save and launch the PDF document
       SaveService saveService = new();
       saveService.SaveAndView("Sample.pdf", "application/pdf", pdfStream);
   }

Notes: This example works on .NET MAUI, ASP.NET Core, and other .NET platforms.

Convert HTML to PDF

Modern web pages are rich in CSS styles, JavaScript functionalityAnd responsive layoutmaking it difficult to share or archive without losing accuracy.

Our HTML-to-PDF conversion engine solves this problem by rendering web content into pixel-perfect PDFs, preserving styles, scripts, and dynamic elements.

Use cases: You can create invoices, tickets, reports, or take entire web pages for offline use, ensuring your content looks exactly as you want, every time.

HTML-to-PDF conversion steps:

1. To enable HTML-to-PDF conversion in your application, install the appropriate Syncfusion.HtmlToPdfConverter.Net.Windows NuGet package.
2. Now, run the following code example.

   using Syncfusion.HtmlConverter;
   using Syncfusion.Pdf;
   
   // Initialize HTML to PDF converter
   HtmlToPdfConverter htmlConverter = new HtmlToPdfConverter();
   
   // Convert URL to PDF
   PdfDocument document = htmlConverter.Convert("
   
   // Save and close the PDF document
   document.Save("Output.pdf");
   document.Close(true);

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Convert images to PDF

Combine multiple images into one PDF for easy sharing and archiving.

Use cases: This is great for scanned documents, photo albums, and receipts, ensuring everything is saved in a compact and portable format.

Follow these steps to convert images to PDF documents:

1. Install the NuGet package Syncfusion.Pdf.Imaging.Net.Core as a reference for your project.
2. Then look at the following code example.

   // Create an instance of the ImageToPdfConverter class
   ImageToPdfConverter imageToPdfConverter = new ImageToPdfConverter();
   
   // Create a file stream to read the image file
   using (FileStream imageStream = new FileStream("Image.jpg", FileMode.Open, FileAccess.Read))
   
   // Convert the image to a PDF document using the ImageToPdfConverter
   using (PdfDocument pdfDocument = imageToPdfConverter.Convert(imageStream))
   {
       // Save the PDF document
       pdfDocument.Save("Output.pdf");
   }

Convert XPS to PDF

Convert XPS documents to PDF format for better compatibility, sharing and long-term archiving. This ensures layout, fonts, and visual formatting are accurately maintained in the output document.

Use cases: This is especially useful for print-ready files, reports, and archival documents that need to be distributed in universally supported formats.

Steps to convert XPS files to PDF:

1. Install the Syncfusion.XpsToPdfConverter.Net NuGet package in your project.
2. Then, run the following code example.

   // Initialize XPS to PDF converter
   XPSToPdfConverter converter = new XPSToPdfConverter();
   
   // Open the XPS file as stream
   using (FileStream fileStream = new FileStream("Input.xps", FileMode.Open, FileAccess.ReadWrite))
   
   // Convert the XPS to PDF
   using (PdfDocument document = converter.Convert(fileStream))
   {
       // Create a MemoryStream to store the PDF
       MemoryStream stream = new MemoryStream();
   
       // Save the document into the stream
       document.Save(stream);
   }

Why choose Syncfusion PDF conversion library?

Here’s what sets Syncfusion apart from other PDF conversion solutions:

1. Multi-format conversion

You can convert Word, Excel, PowerPoint, HTML, images and XPS to PDF easily using our PDF conversion library. It also supports PDF/A for archiving compliance.

2. High quality rendering

Accuracy is important. Syncfusion makes sure of that fonts, layout, pictureAnd style retained during conversion, producing a professional-quality PDF that reflects the original document.

3. Performance & scalability

Optimized for server side And client side applicationhandle large files without slowing down.

4. Cross-platform compatibility

It works with .CLEAN, jacket, MAUIand more ideal for web, desktopAnd mobile application.

5. Security features

You can add password protection, encryptionAnd digital signature for secure PDFs.

6. Customization options

Insert headers, footers, watermark, metadataand control page size And orientation.

7. No external dependencies

No need Adobe Acrobat or MS Officesimplifies implementation.

8. Enterprise level support

Backed by comprehensive documentation and continuous updates for reliable performance, it offers a powerful PDF conversion API designed to support enterprise-scale document processing.

Syncfusion’s high-performance PDF library lets you create PDF documents from scratch without Adobe dependencies.

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Ready to take the PDF conversion headache out of the equation? From now on

Stop wasting time fixing broken layouts and using multiple tools. With Syncfusion’s powerful .NET PDF conversion library, you can turn any document, Word, Excel, PowerPoint, HTML, image, or XPS into Perfect, secure PDFs in just minutes.

Are you building a cross-platform applications in .NET or server-side solutions, our PDF conversion API for document processing ensures accuracy, speed and flexibility for every conversion.

Get the latest version: Current customers can download it from the license and downloads page. New here? Start your 30 day free trial and enjoy all the latest features!

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