Patrick asked me to share this little story.

My print filter uses the PostScript "EndPage" hook to create a "watermark" 
at the top of the first page of output as a replacement for a banner page.

After I started using some HP printers, I noticed that no watermark was 
being printed.  This was because the HP PPD file contains some code which 
redefines the "EndPage" routine.  Since the Adobe driver was inserting this 
code after my watermark code, my watermark code lost.

I had to remove the HP code from the PPD file and propagate it to all clients.

The morals of this story are:

Vendor-supplied PPD files are not necessarily your friends.

It is extremely difficult, if not impossible, to rigorously impose printing 
policy at the server end.  But I still think it's worth trying.

-Rick


|Rick Cochran                                   phone: 607-255-7618|
|Network and Computing Systems, Cornell CIT       FAX: 607-255-8521|
|730 Rhodes Hall, Ithaca, N.Y. 14853        email: [EMAIL PROTECTED]|


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