What kind of signature/verification? A cryptographic signature inside the PDF to authenticate the generator of the PDF? This is already standardized by Adobe.
PDF is designed to be extensible. Therefore it is perfectly valid to add custom streams/objects to the PDF. But you must be prepared that a PDF editor may drop the object if it saves the PDF again. And of course, you need to provide a way to support your proprietary extension. Better stick to standards. On 22.06.2003 12:26:04 Andreas Delmelle wrote: > also, i'm considering the option of creating an > additional content-stream, that could contain a > signature for verification. > > is it possible to include an object in the pdf that > would be left alone by other readers ( but could be > used, perhaps as a form of FOP-specific verification ) > and does this even make sense? Jeremias Maerki --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
