[9.04] printing slowly on PS printers

[Jacques Beigbeder]

Hello,

2 weeks ago, I asked:

>> I have a large network of Ubuntu using a print server with lpd://server/myPrinter
>> I just upgraded the server to 9.04.
>> Now all options, like Duplex, disappear!

The answer was that:
- Ubuntu 9.04 implements
	http://www.linuxfoundation.org/en/OpenPrinting/PDF_as_Standard_Print_Job_Format
  so PDF is the central file format between users and printers.
- I misconfigured CUPS so I made 2 conversions instead od 1, and options
  like Duplex were removed somewhere.

  --

My question: all my printers are Postscript. Whan acroread submits a file to
print, it gives a PS file. CUPS then transforms to PDF, and back to PS
because I have a Postscript printer.

42 pages of a sample PDF file (740 Ko) gives an initial PS file of 1.5 Mo,
and PS to PDF to PS makes the file grow to 50 Mb!! Stupid, isn't it?
The trip was: acroread PDF to PS, cups PS to PDF, then PDF to PS.
So real printing starts
    - later: CPU time needed to do 'gs | gs'
    - slower: large data files take long time to transfer on networks to printers.

	Is there any way to disable this (Cups) PS to PDF to PS?

--
Jacques Beigbeder                    |  Jacques.Beigbeder at ens.fr
Service de Prestations Informatiques |     http://www.spi.ens.fr
Ecole normale supérieure             |
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