Adjust the trapping sequence – Adobe InDesign User Manual
Page 781
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Normal
Transparent
Opaque
Opaque Ignore
Note:
1. Open the Ink Manager and select an ink that requires special treatment.
2. For Type, choose one of the following options, and then click OK:
Use for traditional process inks and most spot inks.
Use for clear inks to ensure that underlying items trap. Use this option for varnishes and dieline inks.
Use for heavy, nontransparent inks to prevent trapping of underlying colors but allow for trapping along the ink’s edges. Use this
option for metallic inks.
Use for heavy, nontransparent inks to prevent trapping of underlying colors and to prevent trapping along the ink’s edges.
Use this option for those inks, such as metallics and varnishes, that have undesirable interactions with other inks.
Adjust the trapping sequence
The trapping sequence (also called the trapping order) matches the order in which inks are printed at the press, but it doesn’t match the order in
which separations are produced at the output device.
The trapping sequence is particularly important when you’re printing with multiple opaque colors, such as metallic inks. Opaque inks with lower
sequence numbers are spread under opaque inks with higher sequence numbers. This process prevents the last applied ink from being spread,
and it still creates good traps.
Don’t alter the default trapping sequence without first consulting with your prepress service provider.
1. Open the Ink Manager. The current trapping sequence is displayed in the Sequence column of the inks list.
2. Select an ink, type a new value for Trapping Sequence, and then press Tab. The sequence number of the selected ink changes, and the
other sequence numbers change accordingly.
3. Repeat the previous step for as many inks as necessary, and then click OK.
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