Example3: CMYK text on a CMYK background

Given CMYK text rendered with overprint on a CMYK background.

 

Background object

Foreground object

 



Object type

not specified

Text

Overprint mode

   

Color space

C: 10 %

M: 20 %

Y: 30 %

K: 40 %

C: 0 %

M: 0 %

Y: 0 %

K: 50 %

We’re dealing with CMYK text, which means that the resulting color in the overlapping part of the objects (the intersection) depends on the overprint mode:


Depending on the overprint mode, the result will look like this:

Standard overprint mode (OPM 0)

Illustrator overprint mode (OPM 1)





C: 0 %

M: 0 %

Y: 0 %

K: 50 %

C: 10 %

M: 20 %

Y: 30 %

K: 50 %

But, suppose we convert the text to an image where all the pixels have the same color, i.e. 0 % cyan, 0 % magenta, 0 % yellow and 50 % black.

The foreground and the background object are in the same color space (CMYK), which means that the foreground image object defines the percentages.

The resulting color in the overlapping part of the objects (the intersection) will be as follows:



C: 0 %

M: 0 %

Y: 0 %

K: 50 %

The overprint mode is irrelevant in this case because an image is overprint-mode-independent.