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Color Pages

Color Pages

Color Figure 1. Overprint and Knockout

Objects colored with spot color 1 set to knock out (Overprint Fill option off)

Objects colored with spot color 1 set to overprint (Overprint Fill option on)


Color Figure 2. Trapping an Open Path

Make sure that the stroke alignment for the paths that you’re trapping is set to Align Center. If you don’t do this, horrible things can happen.

To create a spread (as shown here), clone the path (by copying the path and then choosing Paste In Place from the Edit menu). Increase the stroke weight of the cloned path, then turn on the Overprint Stroke option. To create a choke, clone the path and then decrease the stroke width of the cloned path. Set the stroke of the original path to overprint.

The original path knocks out objects behind it.

Trapped path (without exaggeration)



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