Adobe InDesign CS3 - Manual (Page 588)

INDESIGN CS3
User Guide
581
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.
See also
“Change the appearance of CMYK black (Illustrator, InDesign)” on page 442
Previewing color separations
Previewing color separations
You can preview color separations, ink coverage limits, and overprinting using the Separations Preview panel.
Previewing separations on your monitor lets you check the following:
Varnishes and other coatings Since varnishes are transparent, they can be difficult to preview on-screen. When you
preview a varnish separation by itself, the varnished areas appear in black.
Rich black Previewing separations lets you identify areas that will print as rich black, or process black (K) ink mixed
with color inks for increased opacity and richer color.
Ink coverage Too much ink on the paper can cause drying problems. Ask your commercial printer for the maximum
ink coverage of the press you will be printing on. You can then preview the document to identify areas where ink
coverage exceeds the press’s limit.
Overprinting You can preview how blending, transparency, and overprinting will appear in color-separated output.
Note: You can also see overprinting effects when you output to a composite printing device. This is useful for proofing
color separations.
While previewing separations on your monitor can help you detect problems without the expense of printing separa-
tions, it does not let you preview trapping, emulsion options, printer’s marks, and halftone screens and resolution.
Work with your commercial printer to verify these settings using integral or overlay proofs.
Note: Objects on hidden layers are not included in an on-screen preview.
See also
“Simulate overprinting of spot inks” on page 580
Preview separation plates
1 Choose Window > Output > Separations Preview.
2 For View, choose Separations.
3 Do any of the following:
• To view a single separation and hide all others, click the name of the separation you want to view. By default, areas
of coverage appear in black. To change this, deselect Show Single Plates in Black on the panel menu.
• To view one or more separations, click the empty box to the left of each separation name. Each separation appears
in its assigned color.
• To hide one or more separations, click the eye icon to the left of each separation name.
• To view all process plates at once, click the CMYK icon .