By A Mystery Man Writer
Using TX Text Control, there are two ways of signing PDF documents: The whole document and individual signature fields. This article shows how to implement both ways in a .NET 6 command line application.
Sign PDFs in Adobe Acrobat Reader.
How to Electronically Sign PDF Documents : IET Knowledge Base
Use digital signatures
Certificate-based signatures, Adobe Acrobat
How to Digitally Sign PDF Documents: 3 Ways
Adobe PDF Digital ID Signature
Enable Adobe Reader XI & Acrobat Reader DC to verify Digital Signatures - Secured Signing
Digitally Sign a PDF Document with Power Automate — Encodian
Why Can't I Digitally Sign a PDF