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Adobe CS Suite and Pantone Spots
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Adobe CS Suite and Pantone Spots


  • Subject: Adobe CS Suite and Pantone Spots
  • From: Charles Rieger <email@hidden>
  • Date: Fri, 11 Jun 2004 15:31:25 -0400

Hello,

I was hoping some on the list here could help shed some light on just how the Adobe CS suite handles its Pantone Spot libraries. It is my understanding (and I may well be wrong) that Photoshop CS bases its Pantone colors off of the LAB definitions supplied to Adobe by Pantone. The RGB or CMYK breakdowns are then generated based on the documents ICC profile.

I am unclear however on how Illustrator/InDesign handle Pantone colors. My hope was that the three apps used the same methodology to derive the RGB and CMYK breakdowns, but apparently this is not the case. I have read on the Adobe forums that Illustrator and InDesign base their values from the CMYK breakdowns supplied from Pantone, not the LAB values. This seems to make sense from what I've observed, because no matter what CMYK profile I assign a document, the Pantone breakdowns are always the same. But for RGB documents, the breakdowns vary depending on the document profile.

So it seems that for CMYK documents Illustrator and InDesign always use the Pantone blessed values, but for RGB documents, these CMYK value get converted to the RGB space assigned to the document. If this is the case, does anyone know what the source space for the blessed Pantones are, and how it is getting converted to RGB?

Charlie Rieger
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  • Follow-Ups:
    • Re: Adobe CS Suite and Pantone Spots
      • From: Chris Murphy <email@hidden>
References: 
 >Re : Seeing lab with Photoshop (From: "lagado" <email@hidden>)

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