The PDF SDK for .NET  product has been acquired by Sybrex company in January, 2011 and not available on our web-site anymore.

NEW: Check our new rich PDF reports generator for Javascript (completely client side generation): PDF Generator SDK for Javascript: click here to read more details...


For 3rd party server side C# open-source PDF generation library?

Check the blog article: .NET Bear, Do You Know Any Free PDF Generation Libraries For Use In Commercial Applications?
 

Our commercial products for PDF format:

PDF Extractor SDK - extract tables, text, structured data from PDF files in your apps

PDF Renderer SDK - render PDF files to PNG, BMP, TIFF images in your apps

PDF To HTML SDK - convert PDF to HTML with images and formatting preserved

How to sign PDF document using Bytescout.PDF library for .NET applications

Digitally signing PDF using Bytescout.PDF library for .NET

In this example Bytescout.PDF library for .NET signs existing PDF document (HelloWorld.pdf) and saves as "Signed.pdf" document file.

Download example source code: bytescoutpdf_example_sign_pdf_document.zip (10 KB)

Existing PDF document which we take as an example

Existing PDF document signed with PFX digital signature using Bytescout.PDF library for .NET

 

            // Create main PDF Doc Engine
            PDFDocEngine engine = new PDFDocEngine("", "");

            // Open existing document
            Document document = engine.AddDocument("HelloWorld.pdf");

            document.AddSignature("dig-signature.pfx", "John Doe", "Approved", false, "123456");

            // Save document
            document.Save("signed.pdf");

 

Download example source code: bytescoutpdf_example_sign_pdf_document.zip (10 KB)

Filed in: PDF SDK for .NET

Tutorials: