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                <h1>
                    Color separations
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                <div><p>To reproduce color and
continuous-tone images, printers usually separate artwork into four
plates—one plate for each of the cyan (C), yellow (Y), magenta (M),
and black (K) portions of the image. When inked with the appropriate
color and printed in register with one another, these colors combine to
reproduce the original artwork. The process of dividing the image
into two or more colors is called color separating, and the films
from which the plates are created are called the <dfn class="term">separations</dfn>.</p>
<p>Adobe InDesign CS4 supports two common PostScript workflows; the main difference is where
separations are created—at the <dfn class="term">host computer</dfn> (the system
using InDesign and the printer driver), or at the output device’s
RIP (raster image processor). Another alternative is a PDF workflow.</p>
<p>For more information on
separating colors, see web Help.</p>
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