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Topic: Re: Expire a PDF
Conf: (P-PDF) Developers, Msg: 57034
From: Deleted User
Date: 5/29/2002 05:23 PM
the approach you have chosen is reasonable. There are a few comments to add.
You can use Acrobat 3 _if the Acrobat Forms v.3.5 plug-in is installed_.
This plug-in should be downloadable from the Adobe FTP server.
You can save a document in Acrobat 4 with such a cover up field visible
when you activate it and save the document in the Forms view.
Hope, this can help.
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>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
>meets or exceeds the expiration date contained in a field. The script is
>activated via a page action (OPEN) and sends you back to the first page if
>the document is exipred. This was done with Acrobat 4.
>All worked well with Acrobat 4 and Reader 4, but did not work with Reader
>in front of the the entire page. The field covers the contents via a page
>action to show the field, preventing one from looking at the contents
>(works with Reader 3). A Javascipt hides the field when opened with Reader
>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.....
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