Quick Tips

Once You’re In CMYK Mode, Stay There

You’ve read some techniques in this chapter that require you to be in either RGB mode or Lab Color mode; however, if for any reason your image is already in CMYK mode, do not (I repeat, do not) convert to RGB or Lab mode for any reason. Once you’ve converted to CMYK mode, the data loss from the conversion has already occurred, and switching back to RGB mode won’t bring back those lost colors. What’s worse is, if you switch from CMYK to RGB (or Lab), when you convert back to CMYK mode, you’ll go through another CMYK conversion and damage your image even more. The moral of this story is-once you’re in CMYK mode, stay there.

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3 comments

  1. Chris 29 July, 2009 at 18:09 Reply

    Suddenly, in the last two weeks, I cannot access CMYK mode in Photoshop. It is not grayed out… it has completely disappeared from the list. I use this feature every week to convert files for offset printing. I’m using Photoshop 10.0.1 (CS3) with Mac OS 10.5.7

    Something else that happened… the Photoshop desktop takes over the entire monitor. I cannot have two images visible at the same time.

    Very bizarre. Very counter-productive

    HELP!

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