Teach Yourself VISUALLY OS X Mountain Lion

Rotate a Photo

You can rotate a photo using the iPhoto application, which comes with all new Macs as part of iLife, and is also available separately via the App Store. Depending on how you held your camera when you took a shot, the resulting photo might show the subject sideways or upside down. This may be the effect you want, but more likely this is a problem. To fix this problem, you can use iPhoto to rotate the photo so that the subject appears right-side up. You can rotate a photo either clockwise or counterclockwise

Rotate a Photo

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