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Please see the screenshot beneath. I'm using Adobe Acrobat Pro DC Version 2019.010.20064.

I'm trying to convert the book's default (C, M, Y, K) = (99%, 98%, 18%, 6%) (ie dark purple) to (90, 0, 90, 0) (green). After I click 'OK' and click 'Fix', Adobe Acrobat executes the fixup, but the color fails to change.

enter image description here

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  • Just a guess: are you sure the PDF is CMYK and not RGB mode? – jhurley Apr 23 '19 at 14:08
  • @jhurley Did you manage to download the PDF? 'Output Preview' exhibits CMYK percentages not RGB. – Accounting Apr 24 '19 at 1:51
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    @Greek-Area51Proposal Please don 't ask people to download things. We're a bit weary of download links, because users never know for sure what they are downloading. If you are having specific problems, use (annotated) screenshots to illustrate them. – PieBie♦ Feb 21 at 12:18
  • @PieBie If I remember, didn't someone ask me for the PDF so that he can download it? Was that comment deleted? – Accounting Apr 27 at 0:54
  • Yes. See my previous comment. We do not allow questions that depend on external files. Questions need to be self-contained, and potentially useful to others. If your problem cannot be solved without access to the original file, then it is a technical issue and not a design issue and it is out-of-scope for GDSE. – PieBie♦ Apr 27 at 7:17
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Not sure what went wrong at your end. I have used the exact same settings as you (see attached screenshot) and it worked as expected. What version of Acrobat are you using? enter image description here

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  • I have tried 2018.003.00009 Windows and 2019.010.20098 both without any issues. Can you import (via the options menu at the top right) this profile and try it link? – Dietrich von Seggern Apr 25 '19 at 10:15
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    The Profile that you have sent uses wrong input color (other than in your initial screenshot): C97 M55 Y28 K7 instead of C99 M98 Y18 K6. When I modify your profiles values it works as expected. – Dietrich von Seggern May 2 '19 at 9:28
  • Hi! Sorry for the delay; I forgot about this. Where do you see "C97 M55 Y28 K7"? As you can see, I input " C99 M98 Y18 K6" in my screenshot. – Accounting Feb 20 at 4:02

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