Adobe InDesign CS5 - Manual (Page 648)

642 USING INDESIGN
Color separations
Last updated 11/16/2011
• To overprint a color applied to the spaces in a dashed, dotted, or patterned line, select Overprint Gap.
Note: The Overprint Stroke and Overprint Gap options in the Paragraph Rules dialog box can be saved as part of a
paragraph style.
Overprint rules above footnotes
InDesign can automatically insert a rule to separate footnotes from the body of the document. You can choose to
overprint the rule.
1 Make sure a swatch exists for your overprint color.
2 Choose Type > Document Footnote Options.
3 In the Footnote Options dialog box, click the Layout tab.
4 Select Overprint Stroke, and click OK.
Simulate overprinting of spot inks
Overprint simulation is useful for simulating the effects of overprinting spot inks with different neutral density values
(for example, red and blue). When you print to a composite output device using overprint simulation, you can see if
the resulting color is one that you want to overprint or knock out.
1 In the Output area of the Print dialog box, choose a composite option in the Color menu.
Note: You cannot simulate overprinting when Composite Leave Unchanged is selected.
2 Select Simulate Overprint.
Change the black overprint setting
To knock out black objects in InDesign, you must prevent the black swatch from overprinting. Unlike most color
swatches, which knock out by default, the black swatch overprints by default, including all black strokes, fills, and text
characters. The 100% process black appears as [Black] in the Swatches panel. Knock out black objects by either
deselecting the overprint default in Preferences or by duplicating the default black swatch and applying the duplicated
swatch to color objects that knock out. If you disable the overprint setting in the Preferences dialog box, all instances
of Black knock out (remove underlying inks).
It can be cheaper and easier to have the print shop overprint process black on the press.
1 Choose Edit > Preferences > Appearance Of Black (Windows) or InDesign > Preferences > Appearance Of Black
(Mac OS).
2 Select or deselect Overprint [Black] Swatch at 100%.
Note: Overprint [Black] Swatch at 100% does not affect tints of [Black], unnamed black colors, or objects that appear
black because of their transparency settings or styles. It affects only objects or text colored with the [Black] swatch.
Inks, separations, and screen frequency
For detailed information and instructions, click the links below.