Ok I realize that someone else out there must have come across this problem before, but I can't seem to find a solution.  I need to embed information into my PDF's that I make from slddrw's, so that when an operator on the plant floor needs to print them out, the drawing it automatically place a watermark (or similar) warning on the drawing. This must say the same thing (i.e. "NOT VALID AFTER 7 DAYS FROM TIMESTAMP") every time but the timestamp on their print must update to the time they printed out the PDF.

Does anyone know how I can get this accomplished, I would really like to get this done with only one step and not have to add any secondary operations?