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ADOBE ILLUSTRATOR CS2
User Guide
3 Select a flattening preset from the Preset menu, or click Custom to set specific flattening options. (See “Trans-
parency flattening options” on page 486.)
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 palette to determine which areas of the artwork contain transparency.
Transparency flattening options
You can set the following options in Transparency Flattener Preset Options dialog box, the Flatten Transparency
dialog box, and the Flattener Preview palette.
Name Specifies the name of the preset. Depending on the dialog box, you can type a name in the Name text box or
accept the default. You can enter the name of an existing preset to edit that preset. However, you can’t edit the default
presets.
Raster/Vector balance Specifies the amount of rasterization. The higher the setting, the less rasterization is
performed on artwork. Select the highest setting to keep as much artwork as possible vector data; select the lowest
setting to rasterize all the artwork.
Line Art And Text Resolution Specifies the resolution for vector objects rasterized as a result of flattening.
Gradient And Mesh Resolution Specifies the resolution for gradients and mesh objects rasterized as a result of
flattening.
In most cases, a value of 300 is sufficient for Line Art And Text Resolution, and a value of 150 is sufficient for
Gradients And Mesh Resolution. However, if small fonts or fine objects will be rasterized or if the output is a high-
quality print, higher values (600 ppi or more) are necessary. Using very high values is not recommended because it
can degrade performance without noticeably improving the quality of the artwork. Note that for both options, the
Flatness setting in the Graphics portion in the Print dialog box affects the precision of intersections when flattening.
Convert All Text To Outlines Converts all type objects (point type, area type, and path type) to outlines and discards
all type glyph information. This option ensures that the width of text stays consistent during flattening. Note that
enabling this option will cause small fonts to appear slightly thicker.
Convert All Strokes To Outlines Converts all strokes to simple filled paths. This option ensures that the width of
strokes stays consistent during flattening. Note that enabling this option will cause thin strokes to appear slightly
thicker.
Clip Complex Regions Ensuresthatthe boundaries betweenvectorartwork andrasterizedartwork fall alongobject
paths. Selecting this option reduces stitching artifacts that result when part of an object is rasterized while another
part of the object remains in vector form. However, selecting this option may result in paths that are too complex for
the printer to handle.
Note: Some print drivers process raster and vector art differently, and this can also result in color stitching. You may be
able to minimize stitching problems by disabling some print-driver specific color-management settings. Because these
settings vary with each printer, see the documentation that came with your printer.
Select Preserve Alpha Transparency (Flatten Transparency dialog box only) Preserves the overall opacity of
flattened objects. With this option, as when you rasterize artwork using a transparent background, blending modes
and overprints are lost but their appearance is retained within the processed artwork, along with the level of alpha
transparency. Preserve Alpha Transparency can be useful if you are exporting to SWF or SVG, since both of these
formats support alpha transparency.
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