hichiu, hichiu wrote > blank_2.pdf <http://itext-general.2136553.n4.nabble.com/file/n4659405/blank_2.pdf> > > here is the pdf with error when "validate all signatures" in adobe reader.
First of all: the "Annotation modified" message is no ERROR, merely a WARNING, at least here Adobe Reader merely shows a warning sign. Now concerning the warning: As the revision with the signature indeed is the outermost revision in the file, the warning is due to SOMETHING ADOBE READER DOES while displaying, not due to a after-signing-change in the file itself. And indeed, when you create the freetext annotation, you do that without adding an appearance stream. Thus, Adobe Reader has to create an appearance for that annotation. And as Adobe Reader in its signature panel tries to describe the document you see, this appearance it created constitutes a change of the annotation after the signature was applied. And this exactly is what it warns about. Up to a point it is right to do that: After all, different PDF viewers may create appearances for that annotation differently, at least the exact positioning may differ, and that MIGHT make a difference. To get rid of the warning, therefore, you should create an appearance for your annotation when you add it. Regards, Michael -- View this message in context: http://itext-general.2136553.n4.nabble.com/Itextsharp-annotations-modified-after-digital-signing-tp4659401p4659412.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ November Webinars for C, C++, Fortran Developers Accelerate application performance with scalable programming models. Explore techniques for threading, error checking, porting, and tuning. Get the most from the latest Intel processors and coprocessors. See abstracts and register http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
