How to Use the Rotate View Tool in Photoshop CS6
Sharing the flyout menu in Photoshop CS6 with the Hand tool is the Rotate View tool. This tool actually rotates your entire image window. Follow these steps to use the Rotate View Tool:
Select the Rotate View tool from the Tools panel.
Place your tool cursor in the image window and hold down the mouse button.
A compass rose appears.
Drag the cursor clockwise (or counterclockwise) to rotate the image window.
Note that you can see the numeric rotation angle in the Options bar. Check the Rotate All Windows option to simultaneously rotate all open documents.
When you reach your desired rotation angle, release the mouse button.
If you want to undo your rotation, click the Reset View button in the Options bar.
Choosing Edit→Undo or using the History panel to undo doesn’t revert your image to the original 0-degree rotation.
If you’re a user of a MacBook,, a Mac with a Magic Trackpad or Magic Mouse, or if you are using a Windows 7 computer with a multi-touch trackpad, you may be aware that you can use your trackpad to flick, rotate, or zoom. You may also have been annoyed when you did these things inadvertently, in which case you can disable Gestures in your Interface Preferences settings.
If you’re using Mac’s Lion OS, gestures are controlled in the Mouse or Trackpad preference panes in the Systems Prefences.