Adobe Illustrator CC 2015 - Manual (Page 490)

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Printing
Last updated 6/5/2015
Set transparency flattening options for printing
1 Choose File > Print.
2 Select Advanced on the left side of the Print dialog box.
3 Select a flattening preset from the Preset menu, or click Custom to set specific flattening options.
4 If the artwork contains overprinted objects that interact with transparent objects, select an option from the
Overprints menu. You can preserve, simulate, or discard overprints.
Note: If the artwork does not contain transparency, the document will not be flattened and the flattening settings are
not relevant. Use the Flattener Preview panel to determine which areas of the artwork contain transparency.
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.
Outlined Strokes Highlights all strokes that will be outlined if involved in transparency or because Convert All Strokes
To Outlines is selected.
Outlined Text (Illustrator and InDesign) Highlights all text that will be outlined if involved in transparency or because
Convert All Text To Outlines is selected.
note: In the final output, outlined strokes and text may appear slightly different from native ones, especially very thin strokes
and very small text. However, the Flattener Preview doesn’t highlight this altered appearance.
Raster-Fill Text And Strokes (InDesign only) Highlights text and strokes that have rasterized fills as a result of flattening.
All Rasterized Regions (Illustrator and InDesign) Highlights objects and intersections of objects that will be rasterized
because there is no other way of representing them in PostScript or because they are more complex than the threshold
specified by the Rasters/Vectors slider. For example, the intersection of two transparent gradients will always be
rasterized, even if the Rasters/Vectors value is 100. The All Rasterized Regions option also shows raster graphics (such