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Adobe InDesign CS3 User Manual

Page 415

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INDESIGN CS3

User Guide

408

Raster/Vector balance

Specifies the amount of vector information that will be preserved. Higher settings preserve

more vector objects, while lower settings rasterize more vector objects; intermediate settings preserve simple areas
in vector form and rasterize complex ones. Select the lowest setting to rasterize all the artwork.

Note: The amount of rasterization that occurs depends on the complexity of the page and the types of overlapping objects.

Line Art And Text Resolution

Rasterizes all objects, including images, vector artwork, text, and gradients, to the

specified resolution. Acrobat and InDesign allow a maximum of 9600 pixels per inch (ppi) for line art, and 1200 ppi
for gradient mesh. Illustrator allows a maximum of 9600 ppi for both line art and gradient mesh. The resolution
affects the precision of intersections when flattened. Line Art and Text Resolution should generally be set to
600-1200 to provide high-quality rasterization, especially on serif or small point sized type.

Gradient And Mesh Resolution

Specifies the resolution for gradients and Illustrator mesh objects rasterized as a

result of flattening, from 72 to 2400 ppi. The resolution affects the precision of intersections when flattened. Gradient
and mesh resolution should generally be set between 150 and 300 ppi, because the quality of the gradients, drop
shadows, and feathers do not improve with higher resolutions, but printing time and file size increase.

Convert All Text To Outlines

Converts all type objects (point type, area type, and path type) to outlines and discards

all type glyph information on pages containing transparency. 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 when
viewed in Acrobat or printed on low-resolution desktop printers. It doesn’t affect the quality of the type printed on
high-resolution printers or imagesetters.

Convert All Strokes To Outlines

Converts all strokes to simple filled paths on pages containing transparency. This

option ensures that the width of strokes stays consistent during flattening. Note that enabling this option causes thin
strokes to appear slightly thicker and may degrade flattening performance.

Clip Complex Regions

Ensures that the boundaries between vector artwork and rasterized artwork fall along object

paths. 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.

Stitching, where rasters and vectors meet.

Note: Some print drivers process raster and vector art differently, sometimes resulting in color stitching. You may be able
to minimize stitching problems by disabling some print-driver specific color-management settings. These settings vary
with each printer, so see the documentation that came with your printer for details.

(Illustrator only) Select Preserve Alpha Transparency (Flatten Transparency dialog box only)

Preserves the overall

opacity of flattened objects. With this option, blending modes and overprints are lost, but their appearance is
retained within the processed artwork, along with the level of alpha transparency (as when you rasterize artwork
using a transparent background). Preserve Alpha Transparency can be useful if you are exporting to SWF or SVG,
since both of these formats support alpha transparency.

(Illustrator only) Select Preserve Spot Colors And Overprints (Flatten Transparency dialog box only)

Generally

preserves spot colors. It also preserves overprinting for objects that aren’t involved in transparency. Select this option