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Validate PDF Digital Signature - Community / GemBox.Pdf Feature Request - GemBox Support Center

4

Validate PDF Digital Signature Completed

An ability to be able to tell using c# if 1) the number of times a PDF has been digitally signed and 2) if the signature(s) are valid.

Official response

Mario at GemBox

Hi,

This feature request has been implemented and is available in the latest versions of GemBox.Pdf:
https://www.gemboxsoftware.com/pdf/examples/c-sharp-vb-net-pdf-digital-signature-validation/1105

Regards,
Mario