On 12/15/11 1:03 PM, "mkl" <[email protected]> wrote: >To Reader-enable a document, you need some Adobe secret with which the >documents are marked (signed, partially encoded, howsoever). Thus, only >Adobe software can do this... and maybe rogue software by people who >pirated that secret (some older schemes had been cracked or circumvented), >but iText definitively is not such rogue software.
Actually, there is nothing secret or undocumented about it - except our Private key. The methods used for "Reader Enabling" a PDF are fully documented in ISO 32000-1, and in fact at least one other vendor uses it in the same way we do - to enable extra features in their free viewer. As the method relies on public key cryptography, and only Adobe has access to our Private key - THAT is why no one else can enable for Adobe Reader. Leonard ------------------------------------------------------------------------------ 10 Tips for Better Server Consolidation Server virtualization is being driven by many needs. But none more important than the need to reduce IT complexity while improving strategic productivity. Learn More! http://www.accelacomm.com/jaw/sdnl/114/51507609/ _______________________________________________ iText-questions mailing list [email protected] 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
