Adobe 718659340025 Printing Guide - Page 55

Illustrator 9 or later native file format only, not EPS.

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• The Simulate Overprints option is on in the Advanced panel of the Print or Export PDF dialog boxes. Although this may sound contradictory, it isn't. Overprinting instructions are for separations output. The Simulate Overprints option is intended for proofing overprinting for devices that can't indicate overprints on composite output. Do not enable Simulate Overprints when sending final composite output to a digital press or print workflow system. 52 Evaluating a file for use of transparency When you receive an InDesign file from a customer, your approach to handling that file will depend on exactly how transparency was used. Some scenarios don't require much special handling, while others require careful handling. This section describes how to evaluate an InDesign file and understand what to do to ensure optimal output. It's important to remember that an InDesign document may contain native transparency in more than one way. Transparency can be applied in InDesign, or may be present in a file imported from another product that produces native transparency, as indicated below. To evaluate an InDesign document for transparency: 1. Check the Pages palette. Any pages containing objects with transparency applied will appear with a checkerboard pattern if the transparency is from: • InDesign 2 or later • Illustrator 9 or later (native file format only, not EPS). • Photoshop 4 or later (native file format only). • PDF 1.4 or later (generated by applications such as Illustrator 9 or later) The spread containing pages 20-21 displays a checkerboard pattern because transparency is applied to objects on the spread by InDesign or within imported graphics. 2. On pages that contain transparency, you can precisely identify areas affected by transparency by choosing Transparent Objects from the Highlight pop-up menu in the Flattener Preview palette (see "Previewing transparency flattener presets" on page 59). 3. If preflighting indicates that the document contains EPS graphics, ask the customer if any EPS graphics came from Adobe Illustrator 9 or 10. What you are looking for are EPS

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52
•
The Simulate Overprints option is on in the Advanced panel of the Print or Export PDF
dialog boxes. Although this may sound contradictory, it isn’t. Overprinting instructions
are for separations output. The Simulate Overprints option is intended for proofing
overprinting for devices that can’t indicate overprints on composite output. Do not
enable Simulate Overprints when sending final composite output to a digital press or
print workflow system.
Evaluating a file for use of transparency
When you receive an InDesign file from a customer, your approach to handling that file will
depend on exactly how transparency was used. Some scenarios don’t require much special
handling, while others require careful handling. This section describes how to evaluate an
InDesign file and understand what to do to ensure optimal output.
It’s important to remember that an InDesign document may contain native transparency
in more than one way. Transparency can be applied in InDesign, or may be present in a file
imported from another product that produces native transparency, as indicated below.
To evaluate an InDesign document for transparency:
1.
Check the Pages palette. Any pages containing objects with transparency applied will
appear with a checkerboard pattern if the transparency is from:
•
InDesign 2 or later
•
Illustrator 9 or later (native file format only, not EPS).
•
Photoshop 4 or later (native file format only).
•
PDF 1.4 or later (generated by applications such as Illustrator 9 or later)
The spread containing pages 20-21 displays a checkerboard pattern because transparency is applied to
objects on the spread by InDesign or within imported graphics.
2. On pages that contain transparency, you can precisely identify areas affected by transpar-
ency by choosing Transparent Objects from the Highlight pop-up menu in the Flattener
Preview palette (see “Previewing transparency flattener presets” on page 59).
3.
If preflighting indicates that the document contains EPS graphics, ask the customer if
any EPS graphics came from Adobe Illustrator 9 or 10. What you are looking for are EPS