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Special Edition Using Adobe® Illustrator® 10 by Peter Bauer

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Chapter 18. Raster Images and Rasterized Objects

The Difference Between Vector and Raster

The two basic classifications of digital images are vector and raster. Vector image files, such as those native to Illustrator, contain descriptions of geometric objects. Raster image files (also known as bitmap images) contain descriptions of colored pixels arranged in a grid or raster.

The two types of artwork have their strong points and their weaknesses. They are designed for different jobs, and they do their jobs well. Determining when to use which, when you have a choice, depends on a variety of factors. Sometimes file format requirements dictate whether ...

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