Operation Manual

592 | Corel DESIGNER X7 User Guide
7 Enable the PostScript 3 In-RIP trapping check box.
8 Click Settings.
9 Type a value in one or more of the following boxes:
• Step limit — specifies a threshold between color variations. The lower the threshold value, the more likely it is that a trap will be
created.
• Black limit — specifies the threshold at which process black is considered pure black
• Black density limit — specifies a neutral density value for the black ink
• Sliding trap limit — specifies the difference between the neutral densities of adjacent colors at which a trap adjusts (slides) from the
darker side of a color edge toward the centerline. The lower the sliding trap limit, the more gradual the transition.
To choose In-RIP trapping options, you must have selected PostScript 3 from the Compatibility list box under the PostScript tab in
the Print dialog box.
To set inks for trapping
1
Click File Print.
2 Click the Color tab.
3 Enable the Print composite option.
4 Click the Composite tab.
5 Enable the PostScript Level 3 In-RIP trapping check box.
6 Click Settings.
7 In the Type column, select one of the following for each color separation:
• Transparent — the selected ink doesn’t get trapped, but anything beneath it does
• Neutral density — the neutral density of the selected ink determines how it is treated
• Opaque — the selected ink is treated as opaque
• Opaque ignore — the selected ink doesn’t get trapped nor does anything beneath it
To choose In-RIP trapping options, you must have selected PostScript 3 from the Compatibility list box under the PostScript tab in
the Print dialog box.
To select a trap color reduction
1
Click File Print.
2 Click the Color tab.
3 Enable the Print composite option.
4 Click the Composite tab.
5 Enable the PostScript 3 In-RIP trapping check box.
6 Click Settings.
7 Type a value in the Trap color reduction box.
A reduction value of 100% indicates no reduction, while a lower value reduces the neutral density.