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Participant
February 6, 2025
Answered

CMY placed images showing a black channel

  • February 6, 2025
  • 3 replies
  • 547 views

I have an Illustrator document with placed 3 color images (CMY) that is showing black info when I view it using separations preview. The placed photoshop file is a CMYK file and does not have anything in the black channel. Im using Illustrator version 29.2.1.

 

Kinda making me crazy.

Correct answer Ton Frederiks

Your color settings with CMYK: preserve embedded profiles will convert the Gracol to the current Swop working space. Going from a 4 color space to 3 color Lab to another 4 color  Swop, which will generate 4 colors including black.

The default settings: Preserve Numbers (Ignore Linked Profiles) makes sure that no conversion takes place and that black is not regenerated. It would not matter that much for images in general but it it not a good option for vector files and your example image when you want to keep the numbers.

So either use Preserve Numbers (Ignore Linked Profiles) or use Edit > Assign profile to make the profiles the same. the 

3 replies

Inspiring
February 6, 2025

Try to focus on your file's abolity to get "proofed".  If the is nothing in the Black channel, then there is nothing in the Black channel.  Simple.  Do not over think it.

Inspiring
February 6, 2025
  • You say shows info in the Black channel.  What exactly?
Ton Frederiks
Community Expert
Community Expert
February 6, 2025

And can you show us your Color Settings. The default would be set to preserve numbers to avoid conversion.

Participant
February 6, 2025

.ai file had a swop profile

photoshop files had a gracol profile

 

When we changed Color Managment Policies to OFF and open the file in ai version 28.7.3 it works

The .ai file previewed the images correctly CMY

 

Doing the same thing in version 29.2.1. kept showing info in the black channel.

 

This is how I usually have my color settings

 

 

 

 

Ton Frederiks
Community Expert
Ton FrederiksCommunity ExpertCorrect answer
Community Expert
February 6, 2025

Your color settings with CMYK: preserve embedded profiles will convert the Gracol to the current Swop working space. Going from a 4 color space to 3 color Lab to another 4 color  Swop, which will generate 4 colors including black.

The default settings: Preserve Numbers (Ignore Linked Profiles) makes sure that no conversion takes place and that black is not regenerated. It would not matter that much for images in general but it it not a good option for vector files and your example image when you want to keep the numbers.

So either use Preserve Numbers (Ignore Linked Profiles) or use Edit > Assign profile to make the profiles the same. the 

Ton Frederiks
Community Expert
Community Expert
February 6, 2025

Can you share an example file?

Participant
February 6, 2025

Sadly I cant share the clients files. We just did another round of sleuthing and think it might be something with profile on images. Thanks for responding!