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Topic: Expire a PDF
Conf: (P-PDF) Developers, Msg: 53181
Date: 5/29/2002 04:57 PM
Is there a way to prevent users from reading a PDF with Reader 3.x or lower (file created from Acrobat 4)?
Can you make a PDF file expire after a certain date?
The following describes my attempt in making a PDF file expire after a certain date:
This all worked except that when you opened the file (change security in place) with Acrobat 4 then saved it. This process makes the field hidden and the file can be read by Reader 3 afterwards. Security does not prevent one from saving over the file.....