How do I undo and redo actions in Photoshop?

In Adobe Photoshop, you can undo and redo actions using the following methods:

Undo:

1. Keyboard Shortcut:

   • To undo the last action, press Ctrl + Z (Windows) or Cmd + Z (Mac). You can use this shortcut repeatedly to step backward through your actions.

2. Menu Option:

   • Go to the "Edit" menu and select "Undo" from the dropdown. This will undo the last action.

3. Step Backward:

   • You can also use the "Step Backward" command by pressing Ctrl + Alt + Z (Windows) or Cmd + Option + Z (Mac). This allows you to step backward through multiple actions.

Redo:

1. Keyboard Shortcut:

   • To redo an action that you've undone, press Ctrl + Shift + Z (Windows) or Cmd + Shift + Z (Mac). This will step forward through your actions.

2. Menu Option:

   • Go to the "Edit" menu and select "Redo" from the dropdown. This will redo the last action that you've undone.

3. Step Forward:

   • Similar to "Step Backward," you can use the "Step Forward" command by pressing Ctrl + Shift + Alt + Z (Windows) or Cmd + Shift + Option + Z (Mac) to redo multiple undone actions.

History Panel:

In addition to the above methods, you can also use the History panel to navigate through your document's history and revert to specific states. You can find the History panel in the "Window" menu.

Keep in mind that the number of undo levels available is determined by your Photoshop preferences. You can adjust this in the Preferences menu under "Performance." Having a higher number of history states allows you to undo and redo more actions, but it may consume more memory.

By using these methods, you can efficiently navigate through your editing history and make corrections as needed in Adobe Photoshop.