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Software components for data protection, secure storage and transfer

PDF Signatures

Also by EldoS: CallbackRegistry
A component to monitor and control Windows registry access and create virtual registry keys.
Posted: 10/09/2006 05:33:00
by Federico Curcio (Basic support level)
Joined: 07/14/2006
Posts: 3

How can I check if a signed PDF document has been modified?

Posted: 10/09/2006 08:25:39
by Ken Ivanov (EldoS Corp.)

First, you should validate the digital signature contained in document (using TElPDFSignature.Validate() method). Then, you should check if the signed block of the document covers the entire document. TElPDFSignature.GetSignedVersion() returns the portion of the document that was actually signed.



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As of July 15, 2016 EldoS Corporation will operate as a division of /n software inc. For more information, please read the announcement.

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