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Document's transparency blend space?  Destination color space?

Sep 16, 2010 4:23 PM

I need some hand-holding please.

 

I just exported to pdf, and got this message, and would be happy to fix it if I had a clue what to do:

 

The document's transparency blend space doesn't match the destination color space specified in the Export Adobe PDF settings.


To avoid color appearance changes in the PDF, click cancel and change either the document's transparency blend space, or the destination color space. 

 

 

 

Can you please translate that into English and tell me what to do?

 
Replies
  • Currently Being Moderated
    Sep 16, 2010 4:33 PM   in reply to mtpaper

    Most likely you've picked a CMYK destination, but the Blend space is set to Document RGB. Switch it to CMYK.

     
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  • Currently Being Moderated
    Sep 16, 2010 4:49 PM   in reply to mtpaper

    Edit>Transparency Blend Space

     

    Here's a document on creating Print ready pdfs http://www.adobe.com/designcenter/cs3/articles/cs3_printguide.html

     
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  • Currently Being Moderated
    Sep 16, 2010 4:52 PM   in reply to mtpaper

    The Destination profile is the color space you got from the printer -- FOGRA 27, SWOP 2, something like that (or posiibly the document CMYK working color space) -- that you specified in the output section of the export dialog.

     

    To change the blend space: Edit > Transparency Blend Space > and you only have two choices.

     
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  • Currently Being Moderated
    Sep 17, 2010 4:37 AM   in reply to mtpaper

    OK, then you need to reset the blend space to RGB because this is intended for screen and you're using RGB images and output profile.

     
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  • Currently Being Moderated
    Sep 17, 2010 7:09 AM   in reply to mtpaper

    Can you pull a few pages from the file, save as a new test file, Pakage that, then zip it and post somewhre like yousendit.com? You can put the link here or send it to me in a Private Message if you don't want to share the file with the world. I can't get that message to come up here, so I'm not quite sure waht's going on, but I might be able to figure it out if I see the file.

     
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  • Currently Being Moderated
    Sep 17, 2010 10:23 AM   in reply to Peter Spier

    I have the file sample. I want to start by trying what you are doing, so can you tell me what settings, or preset you've tried?

     
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  • Currently Being Moderated
    Sep 17, 2010 11:05 AM   in reply to mtpaper

    OK, I've reproduced the problem, and here's what I'd do.

     

    You've placed RGB images over CMYK vector paterns made in Illustrator, which in some ways makes things more complex than if the imges and backgrounds were all in a single color space, but it looks as if only the backgrounds are going to be affected by any flattening that will be taking place in the conversion, so if there is any color shifting due to the flattening and choice of space, and I don't see any, it will be isolated to the background texture and probably not noticeable.

     

    Since you have two destinations, you need two differnt PDFs. The sample is very interesting, but I suspect the print run will be small -- limited to family members -- so the first thing to do is ask the printer what PDF export settings he wants you to use. If you're going to have this printed somewhere like Kinkos or Staples, they probably can't answer that question, and I'd stick with the High Quality Print preset, and be sure the compatibility is set to Acrobat 5 or higher so the transparency isn't flattened. Print one page as a sample before committing to the entire job to check the color (and don't expect miracles from the average copy shop running a color copier -- they usually just aren't set up to handle color management and matching).

     

    For the screen version, set the blend space to RGB and choose the Smallest File Size preset. you shouldn't get the warning (but you could ignore it even if you did). If the file is still too big, set the compressin settings to downsample color and grayscale to 75 ppi and lineart to 600 and see if that helps before you try reducing the quality in the compression. The prints off a desktop printer won't be quite as good as they will be at 100ppi, but probably acceptable on most inexpensive paper stocks that peopl seem to use, and hopefully they are going to get the better printed version, anyway.

     

    Peter

     
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  • Currently Being Moderated
    Sep 17, 2010 11:24 AM   in reply to mtpaper

    Any color shifting due to the flattener space is going to be minor compared to shifting due to a profile mismatch at the printing company, or just plain out-of-calibration equipment. Unless the color fidelity of that background is absolutley critical I wouldn't give it a second thought, and if it is, I'd print locally where you have a better chance of getting what you want without a major hassle.

     
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  • Currently Being Moderated
    Sep 17, 2010 1:10 PM   in reply to Peter Spier

    Out of curiosity, does anyone know why the transparency blend space is a document setting rather than something selected during PDF export?

     

    This has always confused me since it makes no readily noticable difference onscreen. (It's also the number one reason why I need to cancel a PDF export.)

     
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  • Currently Being Moderated
    Sep 17, 2010 1:29 PM   in reply to FivePicaPica

    When you have objects and images with both color spaces, it make a world of a difference:

    transpace.jpg

     

    But it does seem like the option could be in the export window, like the ink manager.

     
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  • Currently Being Moderated
    Jun 16, 2012 4:32 AM   in reply to mtpaper

    I finally solved my problem by going to File: Adobe PDF Presets; Choose which preset you want; Click the "Output" tab; Change "Destination" to Document CMYK - U.S. Web Coated. Worked for me.

     
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  • Currently Being Moderated
    Sep 21, 2012 4:39 AM   in reply to mtpaper

    Just an FYI... if you get this warning, check if you have PDF's placed in the document. A coworker was getting this warning and we tracked it down to PDF's placed into the Indesign file and those PDF's had transparencies.

     

    Once those PDF's were removed from the file the warning went away and she was able to save the PDF.

     
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