Adobe INDESIGN 2.0 - USING HELP Help Manual page 411

Adobe InDesign Help
Using Help | Contents
All device and driver dependencies are removed, so that the file will print to almost
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any output device. However, special printer features found in PPD files, such as image
exposure, available media sizes, optimized screen frequencies, and so on, aren't
available in device-independent output.
The color output is always composite CMYK, but it also includes spot colors. As a
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result, it has to be separated in post-processing software, or at the RIP using in-RIP
separations.
It cannot be trapped by InDesign; trapping must occur at the RIP, or in post-
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processing software.
It can only be printed to file (not directly to a device or application) from InDesign.
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This type of file is ideal for composite prepress workflows, where the file will be trapped
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and separated later in the production process, such as during imposition, trapping, or
at the RIP (if the PPD and output device support in-RIP separations).
To save your document or book as a device-independent PostScript file using
InDesign:
1 In the Print dialog box, for Printer, choose PostScript File.
2 For PPD, choose Device Independent.
3 View or change existing print settings. InDesign uses the current page range when
creating the PostScript file.
4 Click Save.
5 Specify a name and location, and click Save.
Creating a device-dependent PostScript file
This type of PostScript file is created with a PPD selected, and has the following character-
istics:
It is 100% DSC-compliant, making it ideal for such post-processing tasks as trapping
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and imposition.
It contains a description of everything in your document, including information about
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linked files, optimized screen frequencies, resolution, and available media sizes tailored
to the currently selected output device.
All driver dependencies are removed.
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It can be composite or separated. All of the color output methods that InDesign
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supports are available. (In-RIP separations are available if the PPD and output device
support them.)
It can be trapped by InDesign (either by using Application Built-In or Adobe In-RIP
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Trapping).
It can only be printed to file (not directly to a device or application) from InDesign.
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This type of file is ideally suited to pre-separation or trapping workflows, where the file
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will be trapped using automatic or Adobe In-RIP Trapping features within InDesign.
To save your document or book as a device-dependent PostScript file using
InDesign:
1 In the Print dialog box, for Printer, choose PostScript File.
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