Debenu Quick PDF Library - PDF SDK Community Forum : Incremental save not working http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 23 May 2026 01:57:58 +0000 Tue, 03 May 2016 19:21:24 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=3320 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[Incremental save not working : well, it&#039;s not an additional...]]> http://www.quickpdf.org/forum/incremental-save-not-working_topic3320_post13229.html#13229 Author: pinozzy
Subject: 3320
Posted: 03 May 16 at 7:21PM

well, it's not an additional process to the original one, its incremental, this means that all revisions are saved and exportable with adobe reader. this tecnique is used by major graphometry softwares like xyzmo or others. i can do that process with itext, for now i solved that way, but i'd prefer to use debenu... if possibile. many thanks for the support! ]]> Tue, 03 May 2016 19:21:24 +0000 http://www.quickpdf.org/forum/incremental-save-not-working_topic3320_post13229.html#13229 <![CDATA[Incremental save not working : Hi,if the pdf is already signedan...]]> http://www.quickpdf.org/forum/incremental-save-not-working_topic3320_post13227.html#13227 Author: Ingo
Subject: 3320
Posted: 03 May 16 at 7:11PM

Hi,

if the pdf is already signed
an additional processing on it shouldn't work i hope ;-)

]]> Tue, 03 May 2016 19:11:56 +0000 http://www.quickpdf.org/forum/incremental-save-not-working_topic3320_post13227.html#13227 <![CDATA[Incremental save not working : Hello all, I&#039;m trying to...]]> http://www.quickpdf.org/forum/incremental-save-not-working_topic3320_post13223.html#13223 Author: pinozzy
Subject: 3320
Posted: 03 May 16 at 11:22AM

Hello all,

I'm trying to edit (adding a new empty signature) a digitally signed document and save it with AppendToFile() method, for preserve the integrity of the signature.

What i do is this (from the Sample console):

QP.LoadFromFile(GetInputFolder() + "test.pdf", "");

f = QP.NewFormField("signature_field", 6);
QP.SetFormFieldBounds(f, 100, 100, 200, 80);
QP.SetFormFieldPage(f, 1);

QP.AppendToFile(GetInputFolder() + "test.pdf");
DisplayPDFReader(GetInputFolder() + "test.pdf");
      
test.pdf is a pdf altready signed.

What i obtain from this snippet is a pdf with error on the sitgnature, instead of the green flag.

If i try for example to do the same thing with itextsharp, the operation doesn't cause any corruption.

What am I missing?

Thanks.

Fabrizio



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