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ADOBE ILLUSTRATOR CS2
User Guide
For imported bitmap images, image resolution is determined by the source file. For bitmap effects, you can specify
a custom resolution. To determine the image resolution to use, consider the medium of final distribution for the
image. If you’re producing an image for online display, the image resolution only needs to match the typical monitor
resolution (72 or 96 ppi). However, using too low a resolution for a printed image results in pixelation—output with
large, coarse-looking pixels. Using too high a resolution (pixels smaller than what the output device can produce)
increases the file size and slows the printing of the artwork.
See also
“About bitmap images” on page 328
“Printer resolution and screen frequency” on page 472
Adobe PDF files
Importing Adobe PDF files
Adobe Portable Document Format (PDF) is a versatile file format that can represent both vector and bitmap data.
You can bring artwork from PDF files into Illustrator using the Open command, the Place command, the Paste
command, and the drag-and-drop feature.
• Use the Place command with the Link option selected to import a PDF file as a single image. You can modify the
linked image using transformation tools; however, you cannot select and edit its individual components.
• Use the Open command or the Place command with the Link option deselected to edit the contents of a PDF file.
Illustrator recognizes the individual components in the PDF artwork and lets you edit each component as a
discrete object.
• Use the Paste command or the drag-and-drop feature to import selected components from a PDF file, including
vector objects, bitmap images, and text.
Note: If you are color-managing artwork in a document, embedded PDF images are part of the document and therefore
color-managed when sent to a printing device. In contrast, linked PDF images are not color-managed, even if color
management is turned on for the rest of the document.
See also
“About linked and embedded artwork” on page 325
Adobe PDF placement options
When you place an Adobe PDF file, you can also specify how to crop the artwork by selecting a Crop To option:
Bounding Box Places the PDF page’s bounding box, or the minimum area that encloses the objects on the page,
including page marks.
Art Places the PDF only in the area defined by a rectangle that the author created as placeable artwork (for example,
clip art).
Crop Places the PDF only in the area that is displayed or printed by Adobe Acrobat.
Trim Identifies the place where the final produced page will be physically cut in the production process, if trim
marks are present.
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