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dzgnr89
Inspiring
January 30, 2018
Answered

Black values change in pdf exports

  • January 30, 2018
  • 2 replies
  • 3963 views

I am making a pdf file from Illustrator file in which black values should be

c=0, m=0, y = 0, k=100. When I save the pdf file, it shows up with the same colour values in illustrator. However in Adobe acrobat, the values change to c=69, m=67, y = 64,k=74

I even tried it from scratch by making  a new CMYK file from illustrator menu then saving the file but still the issue remains.

I tried the following two settings one by one for each pdf

1. No conversion. Include all RGB and tagged CMYK profiles.

2. Convert to destination. US web coated SWOP v2, Document CMYK.

    This topic has been closed for replies.
    Correct answer Mike_Gondek10189183

    BE CAREFUL: Sendspace LINK from previous post, tries to install a flash player trojan horse.

    Dropbox is free, would recommend using that wetransfer or hightail.

    Yes your ai file idoes not have 100K. How are you determining what color you have in those shapes?

    2 replies

    Mike_Gondek10189183
    Community Expert
    Community Expert
    January 30, 2018

    Sorry to ask, but make sure your .ai file set to File >> Document Color Mode >> CMYK. The Adobe color palette allows you to enter CMYK values on an RGB document, which does no one any good and only creates confusion.

    If you still have an issue, can you please post a copy of the .ai file with adjust the art aha has the offending problem, using dropbox or similar.

    dzgnr89
    dzgnr89Author
    Inspiring
    January 31, 2018

    MikeGondek  wrote

    Sorry to ask, but make sure your .ai file set to File >> Document Color Mode >> CMYK. The Adobe color palette allows you to enter CMYK values on an RGB document, which does no one any good and only creates confusion.

    If you still have an issue, can you please post a copy of the .ai file with adjust the art aha has the offending problem, using dropbox or similar.

    Yes the document colour mode is set to CMYK. I even made a new blank document with CMYK profile and pasted my content into it, and still facing the trouble.

    Here is the ai file.

    https://www.sendspace.com/file/yy8h4v

    Here is the pdf file.

    https://www.sendspace.com/file/pzoabo

    Monika Gause
    Community Expert
    Community Expert
    January 31, 2018

    THat's not 100K in your AI file.

    Monika Gause
    Community Expert
    Community Expert
    January 30, 2018

    In Acrobat you need to set the "Simulation profile" to the same profile that you used to make the file in Illustrator and that is embedded in the PDF.

    Otherwise Acrobat will do a CMYK-to-CMYK conversion when showing you the numbers.

    dzgnr89
    dzgnr89Author
    Inspiring
    January 30, 2018

    When I chose onvert to destination. US web coated SWOP v2, Document CMYK, I embedded the profile too. As you can see in the screenshot I cjose that as simulation profild only.

    Monika Gause
    Community Expert
    Community Expert
    January 30, 2018

    Is that also your working CMYK profile in color management setup in Illustrator?

    And if not, is "Preserve Values" furned on in the MCYK conversion setting?