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Welcome to CUPS-PDF v2
CONTENTS:
1. building CUPS-PDF
2. setting up the PDF queue with CUPS
3. note for MacOSX
4. contact
1. building CUPS-PDF
--------------------
Edit src/cups-pdf.h if you do not like /etc/cups/cups-pdf.conf as name
for the configuration file.
To compile CUPS-PDF, invoke gcc in the src/ directory:
gcc -O9 -s -o cups-pdf cups-pdf.c
To install the binary, simply copy cups-pdf to the backend directory
of CUPS (usually /usr/lib/cups/backend).
Now copy extra/cups-pdf.conf to /etc/cups (or whatever location you
selected in cups-pdf.h above). Here you can set all properties of
CUPS-PDF at runtime without the need for restarting any services.
(The defaults should work fine on most systems.)
In case you want to use the color PostScript driver that comes with
CUPS-PDF go to the extra/ subdirectory and copy CUPS-PDF.ppd to your
CUPS model directory (usually /usr/share/cups/model [ /Generic ] ).
2. setting up the PDF queue with CUPS
-------------------------------------
Important notes:
================
*CUPS-PDF requires root privileges since it has to modify file ownerships.
In recent distributions the "RunAsUser" option in cupsd.conf is set to
"Yes" which removes these privileges. Please make sure to set
"RunAsUser No" if you want to use CUPS-PDF.
*** Starting with version 1.2.0 CUPS implements the "RunAsOption" no
longer. In order to ensure CUPS-PDF is running with the required root
privileges you have to make 'root' the owner of the cups-pdf backend
and set the file permissions of the backend to 0700 (root only).
*make sure if any of CUPS-PDF's working directories (e.g. output) is a
NFS mounted volume it is mounted without root_squash!
*CUPS-PDF is known to fail if the gs (GhostScript) binary on a system is
compressed by upx (Ultimate Packer for eXecutables).
*if you are using SELinux make sure it does not interfere with CUPS-PDF
(you can disable SELinux for CUPS by "setsebool -P cupsd_disable_trans 1"
or have a look at contrib/SELinux-HOWTO to make it work)
Now after restarting CUPS you will be able to choose "Virtual Printer (PDF
Printer)" when setting up a new printer in CUPS.
To set up a queue for other UNIX clients you should select Postscript as
vendor and the Color Printer as model for your new printer; queues that get
their input from samba or netatalk (i.e. Windows, OS/2 or MacOS) can be set
up as raw queues. On the Windows, OS/2 or MacOS system choose a color
postscript driver for that network printer (the drivers for Minolta Page
Works or HP DesignJet printers do a good job).
Hint: If you want to create grayscale PDFs you just have to choose a
grayscale printer driver, i.e. the postscript.ppd that comes with CUPS on
the Linux side or a b/w laser printer (e.g. a HP LaserJet) on the Windows
side. On the Linux side be aware that the postscript.ppd will not
re-process data that is already supplied in Postscript format, i.e. a color
Postscript will keep it's colors.
Once you print to the new device the output directory selected in
cups-pdf.conf (defaults to /var/spool/cups-pdf) will be created and all
converted PDF files will be placed in subdirectories named after the owner
of the print job. In case the owner cannot be identified (i.e. does not
exist on the server) the output is placed in the directory for anonymous
operation (if not disabled in cups-pdf.conf - defaults to
/var/spool/cups-pdf/ANONYMOUS/).
Furthermore if logging is enabled the logfile will be placed by default in
/var/log/cups.
The file "CUPS-PDF.ppd" is a modified version of the "Postscript.ppd.gz"
that comes with CUPS 1.1.15 that is able to handle color output.
You should have a look at the contrib/ directory in this bundle which
contains several additions to CUPS-PDF which enhance functionality or
supports the setup of CUPS-PDF on different platforms.
3. note for MacOSX
------------------
Since MacOSX' AFPL GhostScript does not support the way of PDF generation
used by CUPS-PDF you will have to use pstopdf instead. For this the
settings of GhostScript, GSCall and PDFVer in cups-pdf.conf have to be
changed accordingly. The values are documented in cups-pdf.conf .
4. contact
----------
Volker Christian Behr
behr@physik.uni-wuerzburg.de
http://www.cups-pdf.de
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