Color Management in Acrobat 9: Still Not Sure What It's Doing... :o(
I'm still having some trouble getting my head around what Acrobat 9 is (not) doing in terms of color management. Hopefully someone can either confirm that I'm not crazy, or show me what I'm doing wrong (or what simple thing I'm missing):
Open a PDF that I know is tagged with an ICC profile.
Open Output Preview.
If Simulation Profile is set to the same profile then the CMYK values are correct.
If Simulation Profile is set to anything else the CMYK numbers are different. I would expect the appearance to be different, not the numbers. This makes no sense to me... it should be showing me how these CMYK values would output to different devices...
Also, I can't find a way to determine what the embedded profile is. (In this case I knew it was Web SWOP, since I intentionally created it that way, but what if I received a mystery PDF?) When I go to Document Properties it's listed as Tagged PDF: No, even though I know for certain that it does contain an embedded profile.
Output Preview always defaults to the last-use profile, even if the PDF contains an embedded profile. I would think that by default it would go to the embedded profile, and only use the last-used setting (or the default that is set up in preferences) if there was no embedded profile.
Seems like none of this jives with how color management works in every other Adobe app, or any other color-managed app for that matter. Am I just being dumb? (Be honest, I can take it!)
I'm still having some trouble getting my head around what Acrobat 9 is (not) doing in terms of color management. Hopefully someone can either confirm that I'm not crazy, or show me what I'm doing wrong (or what simple thing I'm missing):
Open a PDF that I know is tagged with an ICC profile.
Open Output Preview.
If Simulation Profile is set to the same profile then the CMYK values are correct.
If Simulation Profile is set to anything else the CMYK numbers are different. I would expect the appearance to be different, not the numbers. This makes no sense to me... it should be showing me how these CMYK values would output to different devices...
Also, I can't find a way to determine what the embedded profile is. (In this case I knew it was Web SWOP, since I intentionally created it that way, but what if I received a mystery PDF?) When I go to Document Properties it's listed as Tagged PDF: No, even though I know for certain that it does contain an embedded profile.
Output Preview always defaults to the last-use profile, even if the PDF contains an embedded profile. I would think that by default it would go to the embedded profile, and only use the last-used setting (or the default that is set up in preferences) if there was no embedded profile.
Seems like none of this jives with how color management works in every other Adobe app, or any other color-managed app for that matter. Am I just being dumb? (Be honest, I can take it!)
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As the old saying goes: when in doubt, consult the manual. The problem appears to be that I added the printer using the KDE Add Printer Wizard. It was automatically given a "socket" URI instead of an "lpd" one. When I:
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Probably a simple fix. Change the socket I.P. to match the printer I.P. like this:
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I found that the only thing I needed to do was change socket to lpd (and remove :9100 off the end as well). See Solving Ubuntu printer broken pipe problem (DocuPrint C525A) . BTW thanks for steering me in the right direction - very grateful.
Solving Ubuntu printer “broken pipe” problem (DocuPrint C525A)
Posted on November 25, 2008
Are you having a problem with your printer under the latest versions of Ubuntu (perhaps it worked under an older version)? Are you able to print short documents, but not longer, or more graphics-intensive, documents? (e.g. the unfortunate people at http://ubuntuforums.org/showthread.php?t=625493). Do they sit there as Processing for ages and then switch to Held? If you have the same problem I had the solution I tried may work for you too. Firstly, check your cups error log:
sudo gedit /var/log/cups/error_log
If you see anything like the following, the solution may be simple:
[Job 201] Unable to write print data: Broken pipe
PID 13359 (/usr/lib/cups/backend/socket) stopped with status 1!
System > Administration > Printing and right click on your printer, selecting Properties. Settings > Device URI
If you see something like socket://your_printer_ip_address:9100 just change socket to lpd and remove the :9100 off the end. Then click on apply.
Apparently lpd is a more modern protocol which works with most printers whereas socket is more raw (and potentially faster but riskier in a network situation). Somewhere along the line, the default Ubuntu/Gnome setup for networked printers shifted from lpd to socket. Some primitive printers will have benefited whereas a larger number of more modern printers will have suffered.
Please correct me if I am wrong (which is highly possible) but the underlying problem could be that socket may make the printer wait a long time for a large file to be processed ready for printing. Some printers, such as the Fuji Xerox DocuPrint C525A, may drop the socket if things take too long to start coming through.
Changing timeout settings might work but lpd is better than socket so it is the preferred solution in any case.
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Finally, thanks to sphilli8 for the steer in the right direction at http://ubuntuforums.org/showthread.php?p=6245626.
http://ubuntuforums.org/showthread.php?t=483415 -
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print_x(4);
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break;
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Here is my codeMany thanks for that..but I am not quite sure what you
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(Please take a moment to "Vote as Helpful" and/or "Mark as Answer", where applicable.
This helps the community, keeps the forums tidy, and recognises useful contributions. Thanks!)
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<a href="http://web.mac.com/gartside1104/Forum Pics/DAr.jpg""target="_blank">
"Click to View Full Size".
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