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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)

Tutorials: