Example of Digital Signature in ASP.NET MVC PDF Library

This sample demonstrates how a PDF document can be secured with certificates and signed with either standard or author signatures. Now added the support for Elliptic Curve Digital Signature Algorithm (ECDSA) to sign the PDF document.

DEMO

SOURCE

Click the button to view the PDF document generated by Essential PDF. Please note that Adobe Reader or its equivalent is required to view the resultant document.

Signature Settings

Cryptographic Standard:

Digest Algorithm:

Sign new PDF document

Standard Type:

Sign existing PDF document

Source

Certificate

Password

Reason

Contact

Location

It is also possible to digitally sign with timestamp. More information about the digital signature and timestamp can be found in this documentation section.