PDF Creation and Watermarks

I looked through the forum for an answer to this and really didn't find what I was looking for so I hope someone might be able to help me out here.

I need to be able to mark the "official" output of a SolidWorks drawing that has been approved in EPDM with a permenant watermark that shows two things: 1) The phrase "Production Released" and the date when the drawing changed state to released. The ultimate would be to have a a task kick off that would generate PDF of the drawing and pass the phrase and date from a variable in EPDM and save the file to a central network directory. In the short term I wouldn't mind just being able to right click on a file and kick this event off.

I also want to understand what SolidWorks uses to create a PDF. It looks like there is a SolidWorks PDF tool that is being used in the Save As command which seems to give the best looking PDFs. If this is what would be used in the Convert Files Task operation then what application could be called by EPDM after creating the file that could then retreive the new PDF and apply a watermark?

Thanks

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