Adobe InDesign CC 2015 - Manual (Page 510)

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Transparency
Last updated 6/6/2015
Flatten an individual spread
You can apply flattener settings to individual spreads in a document, overriding the flattener preset you’ve set for the
entire document or book. This is useful for controlling the flattening quality in documents with a mix of high-
resolution images with lots of transparency and low-resolution images. In this case, you can flatten the complex spread
at a high quality, and use a faster and lower-quality flattener preset on the other spreads.
At print or export time, you can revert to the flattener settings for the document or book.
1 Display the spread in the Document window.
2 Choose Spread Flattening in the Pages panel menu.
3 Choose any of the following, and then click OK:
Default Uses the document flattening preset for this spread.
None (Ignore Transparency) Ignores transparency for the spread. This option is useful for troubleshooting by the
service provider.
Custom Opens the Custom Spread Flattener Settings dialog box for specifying settings.
Ignore the flattener preset on an individual spread
❖ Select Ignore Spread Overrides from any of the following locations in InDesign:
• The Flattener Preview panel (Window > Output > Flattener Preview).
• The Advanced area of the Print or Export Adobe PDF dialog box.
Transparency Flattener options
You can set Transparency Flattener options when creating, editing, or previewing flattener presets in Illustrator,
InDesign, or Acrobat.
Highlight (preview) options
None (Color Preview) Disables previewing.
Rasterized Complex Regions Highlights the areas that will be rasterized for performance reasons (as determined by the
Rasters/Vectors slider). Keep in mind that the boundary of the highlight area has a higher probability of producing
stitching problems (depending on the print-driver settings and the rasterization resolution). To minimize stitching
problems, select Clip Complex Regions.
Transparent Objects Highlights the objects that are sources of transparency, such as objects with partial opacity
(including images with alpha channels), objects with blending modes, and objects with opacity masks. In addition, note
that styles and effects may contain transparency, and overprinted objects may be treated as sources of transparency if
they are involved in transparency or if the overprint needs to be flattened.
All Affected Objects Highlights all objects that are involved in transparency, including transparent objects and objects
that are overlapped by transparent objects. The highlighted objects will be affected by the flattening process—their
strokes or patterns will be expanded, portions of them may get rasterized, and so on.
Affected Linked EPS Files (Illustrator only) Highlights all linked EPS files that are affected by transparency.
Affected Graphics (InDesign only) Highlights all placed content affected by transparency or transparency effects. This
option is useful for service providers who need to see graphics that require attention to print properly.
Expanded Patterns (Illustrator and Acrobat) Highlights all patterns that will be expanded if involved in transparency.