How to sign a document (pdf) with an EDS through a browser?

Question

Cryptography

Good afternoon.
Faced with the task, it is necessary to implement the signature of documents (pdf) in the workflow (self-written, at the enterprise). The workflow is written in ASP .NET. I tried to dig in the direction of a self-written browser plugin for signing documents. But there isn't much information on the web. I know there is a CryptoPRO plugin, but it is paid.
Can you point me in the right direction, has anyone had this problem before?

Answer 1

Do you need GOST encryption or is RSA sufficient?
example for RSA on JS here