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• • July 19, 2022 at 11:59 am #14367951
    L D

    Participant

    Hi, I’m seeking a way to change the color space across multiple INDESIGN docs from CMYK to RGB, is there a way to do this? or am I stuck going through each one at a time? thanks so much!

  • July 20, 2022 at 8:16 am #14367966
    David Blatner

    Keymaster

    I’m not sure what you mean by changing the color space. Which color space? The “Intent”? The color swatches? The images inside the document? Can you give some insight into why you need to do this?

    In the meantime, here are a couple of articles that might be of interest:

    Converting CMYK to RGB with InDesign

    
    and

    Turning RGB Black to CMYK Black

    • July 20, 2022 at 9:28 am #14367968
      L D

      Participant

      Hi David,

      I think maybe the term is “color model” rather than space? The intent of the document is for screen display, so it will be in RGB. Typically when I set up indesign files for that, I set my Transparency Blend Space to RGB. This time, I created about 40 that I set to CMYK, so I was hoping there was a quick way to change them all to RGB. But now that I think about it, I don’t think the art will contain any transparencies, so maybe it doesn’t matter what transparency blend space the doc is in? As long as all objects/images are in RGB?

      hope that clarifies!

      Thank you

  • July 20, 2022 at 1:34 pm #14367983
    David Blatner

    Keymaster

    Ah! Transparency Blend Space. I understand now. I don’t know of any way to change that across multiple documents, though I’m sure a script could be written to do it. (But for just 40 files, it’d be faster to just do it manually.)

    Does it matter if you change this? Not necessarily. Though if you’re exporting to RGB then ID will probably complain that it’s in the wrong blending space each time you export.

    More here:

    My Grayscale Images and Colors Changed Suddenly

  • July 20, 2022 at 1:39 pm #14367984
    L D

    Participant

    thanks, that makes sense!

    And thanks for that link, I understand how that works better.

  • July 29, 2022 at 6:19 am #14368649
    Masood Ahmad

    Participant

    You can try this one liner to change the Transparency Blend mode to RGB

    app.documents[0].transparencyPreferences.blendingSpace = BlendingSpace.RGB;

    save this code as a ‘[name].jsx’ JavaScript file and run it using the batch export utility on the folder containing your 40 files.

    https://creativepro.com/files/kahrel/indesign/batch_convert.html

    Hope this will help.

  • April 5, 2023 at 12:25 pm #14389218
    Dan Iorgulescu

    Participant

    Hi!

    I have a little problem with an Apple Script that collects and export pdfs with different pdf presets. One of my client wants that the pdf that is posted on the web to have the Brand RGB color (255,100,0) and those for print the a specific CMYK version of it (0/75/100/10). I tried to convert the swatch via

    set NewColor to “255,100,0”
    set NewColor to run script “{” & NewColor & “}”

    tell active document set color value of swatch “Brand Color CMYK” to NewColor
    –or
    –set properties of swatch “Brand Color CMYK” to {model:process, space:RGB, color value:NewColor}
    end tell

    but I get

    “Adobe InDesign 2023 got an error: Can’t set color value of swatch “Brand Color CMYK” of active document to {255, 100, 0}.”

    Also I tried to find a way to replace via scripting grep but no success. :(

    any hint? Thanks a lot!
    Dan

    • April 5, 2023 at 1:44 pm #14389300
      David Blatner

      Keymaster

      I would like to point out that converting RGB to CMYK (or vice versa) is rarely that straightforward. You need to ask “which RGB” and “which CMYK” for there are many.

      My guess is that the best solution would be to export an RGB CMYK and then use Acrobat to convert it to CMYK.
      Or use InDesign’s built-in conversion tools to export a CMYK PDF, as we discuss here:

      Why You Should Import RGB Images Into InDesign and Convert to CMYK On Export

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