Photoshop Native (PSD)

Historically, the native PSD (Photoshop document) format has been used solely for working files in Photoshop. Copies of those working files were flattened and saved in TIFF or EPS formats for placement in a page-layout program. While PageMaker allowed placement of native Photoshop files (yes, really—although it did not honor transparency), QuarkXPress required TIFF or EPS instead. Old habits die hard, and thus TIFF and EPS have long been the standard of the industry.

However, Illustrator, InDesign, and QuarkXPress 7 and 8 can take advantage of the layers and transparency in Photoshop native files, eliminating the need to go back through two generations of an image to make corrections to an original file. The working image ...

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