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Algorithm of comparing the content of PDF/A

Printed From: Foxit's Planet PDF Forum
Category: Lets Talk PDF
Forum Name: PDF Developers
Forum Description: This conference is for PDF developers.
URL: http://forums.planetpdf.com/forum_posts.asp?TID=2111
Printed Date: 13 Oct 2019 at 10:30pm
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Topic: Algorithm of comparing the content of PDF/A
Posted By: dwarrowdelf
Subject: Algorithm of comparing the content of PDF/A
Date Posted: 02 Jan 2017 at 1:13pm
Hi everybody!
The task is: there is a PDF/A file which will be sent to partner, there the PDF will be signed by partners certificate then it will come back. So I need to compare if the content of PDF wasn't changed. 
 
Now is everything about alghorithm...Any idea?
Thx



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