Internetworkers: http://www.ibiblio.org/internetworkers/

[raustin3 AT nc.rr.com]

 A user wants to be able to expire PDFs a couple of weeks after they 
are printed from web access. For example, someone clicks to bring up 
a PDF file in a browser plug-in and selects print. The user wants to 
have a date printed on the PDF (watermark perhaps?) which says that 
the document expires in two weeks from the time it was printed.
 I've looked through the documentation from Adobe without much luck, 
but I thought someone else may have discovered the trick or can say 
it ain't possible. Any thoughts?