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Photoshop CS4 for Windows and Macintosh: Visual QuickStart Guide by Peter Lourekas, Elaine Weinmann

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10. History

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Using the History panel, you can selectively undo or restore previous stages (called “states”) of a work session. In this chapter, you’ll learn how to restore, delete, and clear history states; preserve states by using snapshots; create a new document from a state or snapshot; and restore areas of an image to a prior state by using the History Brush or ...

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