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Preview 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 separations, 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.
Preview separation plates- Choose Window > Output >
Separations Preview.
- For View, choose Separations.
- 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  .
To view all separations at once, click and drag
the pointer across all of the eye icons (or empty boxes) next to
the separation names.
 The Separations Preview panel can also
be controlled using keyboard shortcuts.  Previewing a single separation (left) and multiple separations
(right) Preview ink coverage- Choose Window > Output >
Separations Preview.
- For View, choose Ink Limit. Enter a value for maximum
ink coverage in the box that appears next to the View menu. (Ask
your commercial printer for the correct value to enter.)
- Verify ink coverage in the document preview. Areas that
exceed the ink coverage limit are shown in shades of red (dark red
areas exceed the ink coverage limit by more than light red areas).
All other areas appear in grayscale.
 Areas that exceed the specified ink coverage limit are shown
in red.
- To check ink coverage for a specific area, use the pointer
to hover over that area in the document window. Ink coverage percentages
appear in the panel next to each ink name.
You can adjust ink coverage by converting
some spot colors to process colors. To adjust ink coverage in placed
graphics, edit the graphics in their source applications. Return to normal view- Choose Window > Output >
Separations Preview.
- For View, choose Off.
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