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Participant
August 7, 2019
Question

How do I convert rich black text to 100%K?

  • August 7, 2019
  • 7 replies
  • 24589 views

I am preparing ads for a print publication. I am trying to change small rich black text to 100% K. I use the editing tools and set the sliders to 100% K but it just changes the text to RGB after I close out of the editing tools. Is there some way to "apply" change? What am I missing?

7 replies

Luke Jennings3
Community Expert
Community Expert
June 10, 2023

You need to duplicte the preflight profile from the "Options" fly-out menu.

Participant
December 29, 2022

Preflight -> "Correct 4C Black" works fine.

Lukas Engqvist
Community Expert
Community Expert
August 11, 2019

In Acrobat Pro the simplest is to use  Convert Colours under Prepress tools. You can choose to convert text objects only and Keep Black and Promote CMYK-K to Balck. Also converting to a greyscale profile will also convert to black. There is of course the above mentioned preflight, and you can also make a preflight into a droplet so that you can apply the fix by just dropping files on it.

Participant
August 12, 2020

Greetings Lukas:
I'm told by my book publisher that my PFD contains 4 color black type. I've used "Convert Colors" option with the "Photoshop 5 default CMYK" selection for any object and color space. I've also opened the "Ink Manager" and checked the "Convert all Spots to Process" option. Then I chose the "Preserve Black" option. Wouldn't this ensure that all the text is rendered on the black process plate? In other words, rendered in black with no separation. I'm stuck and would really appreciate any advice on how to keep all the text in my book black.
Thank you in advance,
Rod Machado
Loyal Adobe User

Luke Jennings3
Community Expert
Community Expert
August 12, 2020

Here is a link to a related discussion that includes instructions on using a preflight fixup:

https://community.adobe.com/t5/acrobat/how-to-convert-color-image-to-black-in-acrobat-dc/m-p/11138554?page=1

Stephen Marsh
Community Expert
Community Expert
August 10, 2019
Inspiring
June 7, 2023

@Stephen Marsh This works like a charm! Thank you! It's not converting my lines though. Lines in charts, underlines and stroked lines. Any idea why? I changed text objects to a bunch of different settings and nothing worked. (Lines that are rich black, lines under 2pt that are rich black)

Stephen Marsh
Community Expert
Community Expert
June 7, 2023
quote

@Stephen Marsh ...Any idea why?


By @Jackie298589920iyr

 

Can you provide a sample or test file?

 

Legend
August 7, 2019

Illustrator is not a general PDF editor: not recommended at all.

I don't know if you can do this in Acrobat, but what I'm saying is don't go near the Edit tool. Look elsewhere.

Legend
August 7, 2019

The Edit tools convert CMYK to RGB, so don't go anywhere near them!

Participant
August 7, 2019

So I cannot convert embedded text to 100%K in the PDF? I have to open in Illustrator and hope I have the font?

Participant
August 7, 2019

This question is about a PFD in Acrobat CD.

Participant
August 7, 2019

Oops. PDF, of course.

Participant
August 7, 2019

Acrobat Pro DC. Think I am dyslexic today.