Jonathan, Jonathan Vargas wrote > is it possible to create a signature without having access to the PDF > document's content, but for the digest of it, and that this signature > could be applied later to the final PDF document?
It is possible but with a twist. That application does not need the digest of the original PDF but instead the other application (the one knowing the PDF) needs to prepare the PDF in a special way adding some content for later embedding the created signature, and then needs to calculate a hash based on that specially prepared PDF. Regards, Michael -- View this message in context: http://itext-general.2136553.n4.nabble.com/Is-it-possible-to-sign-without-having-file-s-content-tp4658547p4658548.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ 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
