Adobe ACROBAT 3D Manual page 679

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Controlling transparency flattening

When your artwork contains transparency, Acrobat performs a process called flattening

before printing or saving the artwork. Flattening cuts apart transparent art to represent

overlapping areas as discrete pieces that are either vector objects or rasterized areas. As

artwork becomes more complex (mixing images, vectors, type, spot colors, overprinting,

and so on), so does the flattening and its results.

Flattening occurs whenever you print a document with transparent objects or export to a

format other than Adobe PDF 1.4 (Acrobat 5.0 and later). Transparent objects are

flattened according to the settings in the Advanced Print Setup dialog box.

Flattening represents overlapping areas as either vector objects or rasterized areas. This example

involves only vector objects.

To specify flattening settings for high-resolution output:

1. Select the Transparency Flattening panel on the left side of the Advanced Print Setup

2. Drag the Raster/Vector Balance slider, or type a new value in the text box to adjust the

degree of rasterization. To print or export as many objects as possible as vector data,

select the highest setting. To rasterize all the artwork with transparency applied, select the

lowest setting.

Note: The amount of rasterization that occurs depends on the amount of RAM available

for Adobe Acrobat, the complexity of the page, and the types of overlapping objects.

3. Select other options in the Transparency Flattening panel as desired. (See

Transparency

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