As noted, you will need Adobe LiveCycle ES (specifically Reader Extensions server and possibly Security Server) in order to achieve your goal.
Leonard -----Original Message----- From: sl2000 [mailto:sl2...@gmail.com] Sent: Monday, January 31, 2011 7:24 AM To: itext-questions@lists.sourceforge.net Subject: [iText-questions] Editable, Save-able, Encrypted PDFs - Possible? Hi I'm at the 'researching technologies' stage so I've not yet bought the book. And I've not worked much with PDFs before so please excuse any dodgy terminology I use. I have a requirement to produce editable, save-able, encrypted PDFs from our software. Workflow would be... 1) System produces PDF by combining template with specific form data (eg Name & Address). 2) PDF is encrypted with specific user's passphrase 3) System emails PDF to user 4) User fills in PDF using Acrobat Reader and saves. 5) User emails back saved PDF to System 6) System decrypts PDF and reads form fields filled in by user. Is it possible to do this using iText? I've stumbled across iText and it looks it should be possible, but I've had a quick test with iTextSharp 5.0.5 using a pdf created in Acrobat[1] and can't get the encryption bit working. It seems that the PDF needs 'Usage Rights' (which I assume only Adobe products can set) if it is to be save-able in Reader; I can create the PdfStamper in 'Append' mode to preserve these; but I cannot encrypt append-mode documents, so... PdfReader reader = new PdfReader(src); PdfStamper stamper = new PdfStamper(reader, new FileStream(dest, FileMode.Create), '\0', false); stamper.SetEncryption(true, "s", "u", PdfWriter.ALLOW_FILL_IN | PdfWriter.ALLOW_PRINTING | PdfWriter.ALLOW_COPY | PdfWriter.ALLOW_MODIFY_CONTENTS | PdfWriter.ALLOW_MODIFY_ANNOTATIONS ); stamper.Close(); ...fails with an iTextSharp.text.DocumentException "Append mode does not support changing the encryption status.". If I set append-mode false I can encrypt the PDF but Acrobat Reader reports a "The document has been changed since it was created and these rights are no longer valid..." error and disables saving the form. We currently produce read-only PDFs using FOP on an xsl-fo file created by our system, so we would be happy if the PDF document was originated in iTextSharp (or FOP!) rather than Acrobat. I've also looked at the example Chap13_form (downloaded with the source from sourceforge) and while this produces a PDF with editable fields it isn't save-able. Is this something I am going to be able to do with iText or do I need to use a different technology (I'm guessing livecycle)? Many thanks in advance Simon Lewington [1]: In fact I used an example from an earlier thread: <http://itext-general.2136553.n4.nabble.com/iText-IKVM-C-stream-to-browser-issues-td2167197.html> <http://itext-general.2136553.n4.nabble.com/file/n2334791/Form1B.PDF> -- View this message in context: http://itext-general.2136553.n4.nabble.com/Editable-Save-able-Encrypted-PDFs-Possible-tp3248937p3248937.html Sent from the iText - General mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions 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 ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! http://p.sf.net/sfu/arcsight-sfd2d _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions 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
