C#. How to programmatically sign a PDF with an electronic signature? Is it possible to sign GOST2012?

Question

C++ / C#

Good afternoon.

Can you please tell me what are the possibilities for programmatically signing a PDF EDS in c#?
I know there is iText library. What can you say about her?
Is it possible to sign a C# PDF using the GOST2012 algorithm? What libraries work with it?

thanks in advance

Answer 1

Look at https://m.habr.com/ru/post/426087/ maybe it will suit you.