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What color management settings should I use to accurately print rich black?

New Here ,
Sep 19, 2018 Sep 19, 2018

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When printed via Adobe Acrobat (or printed directly from Adobe InDesign), a .pdf with #000000 (C: 30, M:30, Y:30, K:100) text is coming out with a blueish hue, while printed via Chrome gives an accurate rich black.

On a PC with Windows 7.

Thanks!

Kirby

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Print and prepress

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correct answers 1 Correct answer

Sep 20, 2018 Sep 20, 2018

Forget about directly printing from InDesign in terms of high quality printed output.

From Acrobat or Reader, R=G=B=0 (RGB “black”) does by default print as CMYK=(0,0,0,1) if the proper option is set in the Advanced (Color Management) print options. This option is treat grays as K-only grays, which outputs R=G=B to CMYK=(0,0,0,1-(R=G=B)). This only works properly for PostScript printers.

Printing R=G=B to non-PostScript devices depends on the printer and its driver.

          - Dov

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LEGEND ,
Sep 20, 2018 Sep 20, 2018

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What printer? What driver?

What do you mean by "#000000 (C: 30, M:30, Y:30, K:100) " - #0000000 is RGB black, and its conversion to CMYK will depend on the profiles used or assumed for RGB and CMYK. So what actual colour and profile is used?

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Community Expert ,
Sep 22, 2018 Sep 22, 2018

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The exact value for a neutral Rich Black is device and substrate dependent. Also I would strongly discourage rich black for text (Unless it is large bold heading type, but this also is dependent on substrate and process)

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Sep 20, 2018 Sep 20, 2018

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Forget about directly printing from InDesign in terms of high quality printed output.

From Acrobat or Reader, R=G=B=0 (RGB “black”) does by default print as CMYK=(0,0,0,1) if the proper option is set in the Advanced (Color Management) print options. This option is treat grays as K-only grays, which outputs R=G=B to CMYK=(0,0,0,1-(R=G=B)). This only works properly for PostScript printers.

Printing R=G=B to non-PostScript devices depends on the printer and its driver.

          - Dov

- Dov Isaacs, former Adobe Principal Scientist (April 30, 1990 - May 30, 2021)

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Community Beginner ,
Jun 13, 2023 Jun 13, 2023

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Dov, Thanks.  Just what I was looking for!  Regards, Charles
Upvote from me though I can't click for it.

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