Adobe INDESIGN 2.0 - USING HELP Help Manual page 230

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Using Help | Contents
File Defined Background Color If a PNG graphic was saved with a non-white
background color, and Use Transparency Information is selected, this option is selected
by default. If you don't want to use the default background color, click White Background
to import the graphic with a white background, or deselect Use Transparency Information
to import the graphic without any transparency (displaying areas of the graphic that are
currently transparent). Some image-editing programs can't specify a non-white
background color for PNG graphics.
Apply Gamma Correction Select this option to adjust the gamma (midtone) values of a
PNG graphic as you place it. This option lets you match image gamma to the gamma of
the device you will use to print or display the graphic (such as a low-resolution or non-
PostScript printer or computer monitor). Deselect this option to place the image without
applying any gamma correction. By default, this option is selected if the PNG graphic was
saved with a gamma value.
Gamma Value This option, available only if Apply Gamma Correction is selected, displays
the gamma value that was saved with the graphic. To change the value, type a positive
number from 0.01 to 3.0.
Scitex CT (.SCT)
The Scitex Continuous Tone (CT) format is used for high-end image processing on Scitex
computers. Scitex CT files often come from Scitex scanners, which produce high-quality
scans for commercial printing. The Scitex CT format supports CMYK, RGB, and grayscale
files, but does not support alpha channels. Contact Scitex to obtain utilities for transferring
files saved in the Scitex CT format to a Scitex system.
TIFF (.TIF)
TIFF is a flexible bitmap image format supported by virtually all paint, image-editing, and
page-layout applications. Also, virtually all desktop scanners can produce TIFF images.
The TIFF format supports CMYK, RGB, grayscale, Lab, indexed-color, and bitmap files with
alpha channels. InDesign recognizes OPI comments encoded in TIFF files. You can use an
image-editing program such as Photoshop to create a clipping path if you want to create a
transparent background for a TIFF image. InDesign supports clipping paths in TIFF images.
Placing a PDF file
Using the Place command, you can reuse existing PDF files in imaginative ways. For
example, you can select an individual page from a catalog saved as PDF, and place it into
an ad or brochure you're creating in InDesign. InDesign preserves the layout, graphics, and
typography in a placed PDF file. As with other placed graphics, you cannot edit a placed
PDF page within InDesign.
Using Help | Contents
Importing, Exporting, and Managing Graphics
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