User's Manual

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ADOBE PHOTOSHOP CS2
User Guide
To view information about installed plug-ins
❖ Do one of the following:
• (Windows) Choose Help > About Plug-in and choose a plug-in from the submenu.
• (Mac OS) Choose Photoshop > About Plug-in or choose ImageReady > About Plug-in, and then choose a plug-in
from the submenu.
Recovery and undo
To use the Undo or Redo commands
TheUndoand Redo commands letyou undo or redo operations.You canalsouse theHistory palettetoundoorredo
operations.
❖ Choose Edit > Undo or Edit > Redo.
If an operation can’t be undone, the command is dimmed and changes to Can’t Undo.
You can set the Redo keystroke preference to be the same for Photoshop and ImageReady. In the General area of the
Preferences dialog box, select a preference for the Redo key. You can also set the key to toggle between Undo and Redo.
See also
“About the History palette” on page 72
To revert to the last saved version
❖ Choose File > Revert.
Note: Rever
t is added as a history state in the History palette and can be undone.
To restore part of an image to its previously saved version
❖ Do one of the following:
• Use the History Brush tool to paint with the selected state or snapshot on the History palette.
• Use the Eraser tool with the Erase To History option selected.
• Select the area you want to restore, and choose Edit > Fill. For Use, choose History, and click OK.
Note: T
o restorethe imagewithasnapshot of theinitial stateofthe document,chooseHistory Optionsfromthe Palette
menu and make sure that the Automatically Create First Snapshot option is selected.
See also
“To use the Eraser tool” on page 490
“The Art History Brush tool” on page 472
To cancel an operation
❖ Hold down Esc until the operation in progress has stopped. In Mac OS, you can also press Command+period.