Hi
I get following error message on Creating the watermark (using cos method) while loading/opening the file .
"This document enabled extended features in Adobe Reader. The document has been changed since it was created an use of extended features in no longer available. Please contact the author for the original version of this document."
Basically I am working on reader plug-in and I open pdf file inside my application. My requirement is to create the watermark in the pdf file while loading it.
So to achieve this I am creating watermark inside AVDocDidOpen callback. But I get above error message even I have used PostMessage for watermark creation.
And if I create watremark after loading the file then I don't get such message.
Any idea how to fix this issue or any other notification which we can get after AVDocDidOpen?
Regards,
Arvind
Well, of course, you get that notification! You have modified the document thus breaking the digital signature from the Reader Enabling...
The only way to accomplish this is to do it AFTER the document is loaded and NOT modify the actual Cos structures - just draw on the page...