Hi,
A little background:
I've worked with the adobe SDK in a .NET environment on watermarking a bunch
of PDFs, the watermarks added to the PDFs were not displayed in the layers
listing, and can be removed in acrobat writer menu (Document - Watermark -
Remove...).
Through that SDK I could also check the OCGs for one named "WaterMark", and
by that identify if the file has a watermark in it.

I scanned and tried the iText samples for watermark, they all seem to create
a new OCG layer, none of the resulting PDFs were identified by acrobat as
containing a watermark, in addition, i found no way to list the OCGs names.

the only close sample i could find was 
http://www.mail-archive.com/itext-questions@lists.sourceforge.net/msg32776.html
http://www.mail-archive.com/itext-questions@lists.sourceforge.net/msg32776.html 
but it doesn't work in last iText version.

1. Is there any way to add a watermark similar to the one added in acrobat??
2. How can I see if a watermark exists??


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