9.5

Table Of Contents
Enter a Knockout Limit value. The knockout limit is the value (expressed as a percentage
of darkness of the object color) that enables you to control the point at which an object
color knocks out a background color.
Enter an Overprint Limit value. Overprint limit is a trapping setting that allows an object
set to overprint to trap according to the Auto Amount value if the object's shade is less
than a particular percentage.
Preferences Color Manager
The Color Manager pane (Administration > Preferences > Renderer > Color Manager)
includes the following controls.
To specify an engine for color transformation, choose an option from the Color Engine
drop-down menu.
To achieve the darkest possible blacks in all output methods, check Black Point
Compensation.
Use the Source Setup drop-down menu to specify the source color space of pictures and
colors used in the application.
To enable the Profile Information command in the Window menu and the Color
Management tab in the Import Picture dialog box, check Enable Access to Picture
Profiles. This option allows you to view information about profiles.
To specify a default proof output setup, choose an option from the Proof Output drop-down
menu.
To specify a rendering intent for soft proofing, choose an option from the Rendering
Intent drop-down list. Perceptual scales all the colors in the source gamut so that they
all fit within the destination gamut. Relative Colorimetric retains colors that are in both
the source gamut and the destination gamut. The only source colors that are changed are
those that are not within the destination gamut. Saturation considers the saturation of
source colors and changes them to colors with the same relative saturation in the
destination gamut. Absolute Colorimetric retains colors that are in both the source gamut
and the destination gamut. Colors that are outside the destination gamut are adjusted in
relation to how they would look when printed on white paper. Defined by Sources uses
the rendering intents defined in source setup for all colors and images.
To color manage vector content in imported EPS and PDF files, check Color Manage
Vector EPS/PDF. Note that this preference applies only to EPS and PDF files imported
after this box is checked.
To color manage vector content in EPS and PDF files that have already been imported in
the active project, check Include Existing Vector EPS/PDF in Layout.
Preferences Layers
The Layers pane (Administration > Preferences > Renderer > Layers) has the following
controls.
30 | A GUIDE TO QUARKXPRESS SERVER 9.5
THE QUARKXPRESS SERVER USER INTERFACE