Hi again. I think i've something that could work. First, i've found the better tool to do the job: pdftk. It could modify a pdf file with a background pdf as watermark.
I've write down this simple script (called watermark_pdf): --------------------------------------------------------------------------------- #!/bin/bash #21/06/2007 by Mirco Piccin aka pictux - [EMAIL PROTECTED] #if your works better (surely), please send me it!! :-) LOGDIR=/var/log/cups LOGFILE=$LOGDIR/watermark_pdf.log if [ `echo $2 | grep -ce "\.[Pp][Dd][Ff]"` -le 0 ] then echo `date` " - ERR: This scripts accepts only PDF format as input file!!! ($2)" >> $LOGFILE 2>&1 exit 1 fi if [ `echo $1 | grep -ce "\.[Pp][Dd][Ff]"` -le 0 ] then echo `date` " - ERR: Background/Watermark image must be in PDF format!!! ($1)" >> $LOGFILE 2>&1 exit 1 fi MOVE=`which mv` PDFTOOL=`which pdftk` BASENM=`which basename` FILENAME=`$BASENM $2` $MOVE $2 /tmp/$FILENAME echo `date` " - Executing : /usr/bin/pdftk /tmp/$FILENAME background $1 output $2" >> $LOGFILE 2>&1 $PDFTOOL /tmp/$FILENAME background $1 output $2 --------------------------------------------------------------------------------------------------------- i put it into /usr/local/bin and chmod-ed it to enable its execution. It accepts 2 parameters: - the background pdf file - the pdf file in which apply the background pdf file (the printed file name) So, in the /etc/cups/cups-pdf.conf 'PostProcessing' section i write: ... PostProcessing /usr/local/bin/watermark_pdf my_background_file.pdf .... The second parameters (the printed file name) is passed directly from cups-pdf. It will permit you to use print all your documents with a watermark. If you need more explanations about the scripts above, let me know. It also writes a log file (for now writes to log if executed manually, probably some problem of authorization...), so you can check if works good, there's also some input controls (no parameters / no pdf files). If you print images, probably no watermark will be applied. Hope it help you! Bye
