The signature widget has a reference to a page, it just don't show in the page's annotation array.
Paulo ----- Original Message ----- From: "Andreas Kuehne" <[EMAIL PROTECTED]> To: "Post all your questions about iText here" <[email protected]> Sent: Wednesday, September 10, 2008 8:53 AM Subject: Re: [iText-questions] Signature not found : Bug or feature ? Hi Leonard, thanks for your expertise regarding the PDF spec ! But I'm a little more concerned about the design within iText. As far as I can see the AcroFields expect to have a reference to a page. So it may be harmful to existing code to have an object that just has a null page ref. Maybe there is a need to add a dummy page ref, perhaps to page 1 ... Let's see what kind of idea Paulo has .. Greetings Andreas ----- Original Message ---- From: Leonard Rosenthol <[EMAIL PROTECTED]> To: Andreas Kuehne <[EMAIL PROTECTED]>; Post all your questions about iText here <[email protected]> Sent: Tuesday, September 9, 2008 11:26:22 PM Subject: Re: [iText-questions] Signature not found : Bug or feature ? Signatures are handled as AcroForm fields - which MUST be listed in the AcroForm dictionary in the Catalog. However, they need not be associated with a page UNLESS you plan to display them. So certifying signatures don't necessary have to have a page. Leonard On Sep 9, 2008, at 12:08 PM, Andreas Kuehne wrote: > Hi, > > I'm not sure whether I'm going to submit a bug or request a new > feature : > > The AcroFields class has method returning all signatures > ( getSignatureNames() ). > > Now I came across a pdf with a signature that doesn't get returned > by getSignatureNames(). On the other hand the Acrobat Reader shows > the signature without any problems. > > Analyzing the code shows that AcroFields are expected to be related > to a page. But the signature doesn't ! > So my question is : > > Is it a bug to expect every signature to be assigned to a page > ( what isn't neccessarily so ) ? > Or do AcroFields are expected to be page-related 'by nature', so my > signature is just no AcroField and I must look for another way to > retrieve the signature ? > > The problematic signed PDF is attached. > > Opinions welcome > > Andreas > < > test_signiert_nopage_md160 > .pdf ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ iText-questions mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/itext-questions Buy the iText book: http://www.1t3xt.com/docs/book.php
