And he is in a position to get this done. E. <div class="gmail_quote">On May 13, 2012 5:04 PM, "Robert Krawitz" <<a href="mailto:rlk@alum.mit.edu">rlk@alum.mit.edu</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> On Sun, 13 May 2012 13:48:13 +0200, edmund ronald wrote: > Till, > > 100% in agreement with all your recommendations. At least Till has good sense here. >> What we need here then is a standardized CUPS filter option (like there >> are already options as "number-up", "page-ranges", ... in the CUPS filter >> system) to turn off color management. It could be a boolean option named >> >> color-management >> >> which is set to "on" by default and sending a job with the command line >> option or IPP attribute >> >> color-management=off >> >> would execute the job with the normal filter chain but all color >> management being turned off. >> >> Supplying this option makes CUPS simply add "color-management=off" to the >> fifth command line argument of all filters it calls, so the filters could >> react appropriately. >> >> The option default can be also changed with an entry in >> /etc/cups/printers.conf (which can be generated by the "lpadmin" command. >> >> On Linux systems these are all filters calling Ghostscript, which means >> gstoraster (ghostscript package), pdftops (cups-filters package), >> foomatic-rip (foomatic-filters package). They are all under my >> maintainership and I would add the option without problems. I would also >> contact free software driver developers to add the option if needed. >> >> Richard, could you help me to get the "color-management=off" option >> correctly implemented in the mentioned CUPS filters? Thanks. >> >> For Mac servers we will need to contact Mike Sweet, as filters of the >> Mac's proprietary PDF workflow will have to get changed. >> >> It would be also very easy to add a checkbox option to any printing dialog >> which makes the jobs being sent with "color-management=off" or >> "color-management=on" depending on the setting. I would call it something >> like >> >> Turn off color management (for calibration) >> >> and put ity into some "Advanced" group. But this has to be decided by the >> desktop UI designers. -- Robert Krawitz <<a href="mailto:rlk@alum.mit.edu">rlk@alum.mit.edu</a>> MIT VI-3 1987 - Congratulations MIT Engineers men's hoops Final Four! Tall Clubs International -- <a href="http://www.tall.org/" target="_blank">http://www.tall.org/</a> or 1-888-IM-TALL-2 Member of the League for Programming Freedom -- <a href="http://ProgFree.org" target="_blank">http://ProgFree.org</a> Project lead for Gutenprint -- <a href="http://gimp-print.sourceforge.net" target="_blank">http://gimp-print.sourceforge.net</a> "Linux doesn't dictate how I work, I dictate how Linux works." --Eric Crampton _______________________________________________ openicc mailing list <a href="mailto:openicc@lists.freedesktop.org">openicc@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/openicc" target="_blank">http://lists.freedesktop.org/mailman/listinfo/openicc</a> </blockquote></div>