Adobe InDesign CS5 - Manual (Page 386)

380 USING INDESIGN
Graphics
Last updated 11/16/2011
Proxy Generation This creates a low-resolution bitmap representation of an image when drawing the file to the screen.
The following settings control how the proxy will be generated:
• Use TIFF Or PICT Preview Some EPS images contain an embedded preview. Select this option to generate the proxy
image of the existing preview. If a preview does not exist, the proxy will be generated by rasterizing the EPS to an
offscreen bitmap.
• Rasterize The PostScript Select this option to ignore the embedded preview. This option is typically slower but
provides the highest-quality results.
Note: When you import more than one single file into the same document, all instances share the proxy setting of the first
instance of the imported file.
Bitmap import options
You can apply color-management options to individual imported graphics when using color-management tools with
a document. You can also import a clipping path or an alpha channel saved with an image created in Photoshop. Doing
so lets you directly select an image and modify its path without changing the graphics frame.
When you place a PSD, TIFF, GIF, JPEG, or BMP file and select Show Import Options in the Place dialog box, you’ll
see a dialog box containing these options:
Apply Photoshop Clipping Path If this option isn’t available, the image wasn’t saved with a clipping path, or the file
format doesn’t support clipping paths. If the bitmap image doesn’t have a clipping path, you can create one in
InDesign.
Alpha channel Select an alpha channel to import the area of the image saved as an alpha channel in Photoshop.
InDesign uses the alpha channel to create a transparent mask on the image. This option is available only for images
that contain at least one alpha channel.
Image imported without clipping path (left) and with clipping path (right)
Click the Color tab to view the following options:
Profile If Use Document Default is selected, leave this option unchanged. Otherwise, choose a color source profile that
matches the gamut of the device or software used to create the graphic. This profile enables InDesign to properly
translate its color to the gamut of the output device.
Rendering Intent Choose a method for scaling the color range of the graphic to the color range of the output device.
Typically, you’ll choose Perceptual (Images) because it accurately represents colors in photographs. The Saturation
(Graphics), Relative Colorimetric, and Absolute Colorimetric options are better for areas of solid color; they don’t
reproduce photographs well. Rendering Intent options aren’t available for bitmap, grayscale, and index-color mode
images.