A signature is used to prove that a PDF has not been changed since the signature was applied. In addition, it is now possible to encrypt a PDF with PDFSign-CL, to provide it with a password and to restrict access. PDFSign-CL thus offers all functions to protect PDFs from manipulation and to enable proof of … Continued
PDFSign can sign PDF, PDF/A, and ZUGFeRD documents with a X.509 certificate and maintains PDF / A compliance. Create a visible signature with multiple options, timestamp, self-signed certificates. Available as a command line, folder monitor or REST/SOAP web service application.