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How to Convert Your Images from RGB to CMYK

Photoshop


It is easy to change the color mode to CMYK in Photoshop. Simply go to Image / Mode and pull
to CMYK Color.

       
RGB to CMYK 1
 
       
QuarkXPress

In QuarkXPress, there are two areas where you may have non-CMYK color. One is in your linked
images (TIFFs or EPS files that are placed into Quark). The other is in any Quark element such as
text, boxes, borders, or lines.

To check for TIFFs you have placed into Quark using the “Get Picture” function, you will need
Photoshop. To check for EPS files placed into Quark, you will need Illustrator.

To check for Quark elements, you will have to select individual elements to see what color they are
assigned in the color palette.

In this example, be sure not to use any RGB color swatches.

RGB to CMYK 2
 
       
You may have created a custom Pantone or Spot color. It is best that you go to Edit > Colors to
convert these to CMYK.
       
RGB to CMYK 3
 
       

Click on Model and pull to CMYK. Any Pantone or Spot color is now converted to their CMYK
equivalents.

InDesign

In InDesign, there are two areas where you may have non-CMYK color. One is in your linked images
(TIFFs or EPS files that are placed into InDesign). The other is in any InDesign element such as text,
boxes, borders, or lines.

To check for TIFFs you have placed into InDesign using the “Place” function, you will need
Photoshop. To check for EPS files placed into InDesign, you will need Illustrator.

To check for InDesign elements, you will have to select them individually and check the Color Palette.
If the selected element is RGB or LAB, simply change it to CMYK.

RGB to CMYK 4
   
   
Illustrator

In Illustrator, there are two areas where you may have non-CMYK color. One is in your linked or
embedded images (TIFFs or EPS files that are placed into Illustrator). The other is in any Illustrator
element such as text, boxes, borders, lines or any other vector art.

To check for images you have placed into Illustrator using the “Place” function, you will need
Photoshop.

To be sure that all your vector objects are all CMYK, you will first need to select all (Control-A
Windows, Command-A Mac), and then go to Filter > Colors > Convert to CMYK.

RGB to CMYK 5
 
   
Please note that gradients will not convert using the Convert to CMYK Filter. You should probably
create your gradients in a raster editing program like Photoshop and place them into Illustrator.
   
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