2020

Table Of Contents
THE QUARKXPRESS SERVER USER INTERFACE
Click Knockout All to turn off trapping and print objects with a zero trap
amount.
Check Process Trapping to trap each process separation plate individually when a
page contains overlapping process colors.
Check Ignore White to specify that an object color in front of multiple background
colors (including white) does not take white into account when trapping.
Enter a trapping value in the Auto Amount field or choose Overprint:
Enter a value in the Auto Amount field to control the amount of trapping that
QuarkXPress applies to object and background colors that have an Auto
Amount specified in the Trap Specifications dialog box (Edit > Colors > Edit
Trap), and to control the amount of trapping applied to items with an Auto
Amount (+) Trap Information or (–) specified in the Trap Information palette
(Window > Trap Information).
Choose Overprint to cause overprinting for object and background colors with
an Auto Amount specified in the Trap Specifications dialog box (Edit > Colors
> Edit Trap), as well as for items with an Auto Amount (+) or (–) specified in the
Trap Information palette (Window > Trap Information).
Enter a trapping value in the Indeterminate field or choose Overprint:
Enter a value in the Indeterminate field to control the amount of trapping that
QuarkXPress applies to object colors that are in front of indeterminate
backgrounds (multiple colors with conflicting trapping relationships).
Choose Overprint to cause an object color to overprint an indeterminate
background.
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.
26 | A GUIDE TO QUARKXPRESS SERVER 2020