Adobe INDESIGN 2.0 - USING HELP Help Manual page 336

Adobe InDesign Help
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2 In the Trap Width section, for Black, enter a distance (in points) for how far you want
other colors to spread into black, or for how far you want support screens choked back
under black. Typically, the Black width is set to be 1.5 to 2 times the value of the Default
trap width.
3 For Black Color and Black Density, set values. (See
page 333.)
Note: To use black trapping features, a color area must use an ink with a neutral density
greater than or equal to the Black Density, and the ink must occur in percentages greater
than or equal to the Black Color.
4 Click OK as necessary to close dialog boxes.
Printing books with conflicting trap styles
You can apply one trap style to one sheet of output, such as one page. Normally this is not
a concern. However, if you print multiple documents in a book, and each document or
page has a different trap style, InDesign can resolve some trap style conflicts by synchro-
nizing styles among documents:
If documents in a book use different trap styles with the same name, InDesign assigns
•
the trap style used in the master document, provided you've selected the Trap Style
option in the Synchronize Options dialog box. (See
book file" on page 169.)
The synchronizing feature makes all the master document's styles available to the other
•
documents in the book, but does not assign them; you have to assign trap styles in
each document, or use the [Default] trap style. The styles appear in the Trap Style menu
of the document's Assign Trap Styles dialog box.
Note: If different trap styles are applied to pages in a spread, InDesign honors each
trap style.
Trapping documents with transparent objects
If your InDesign document contains transparent objects and traps, consider the trapping
issues described in "Setting up your transparent document for successful output" on
page 296.
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Trapping Color
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