macOS High Sierra

Crop and straighten photos

You can crop a photo to improve its composition or eliminate unwanted parts of the image. You can crop it to a preset or custom aspect ratio, or you can constrain the photo to its original aspect ratio. You can also straighten photos that were taken at an angle unintentionally.

Window showing a photo with crop and straighten options.

Important: Cropping a photo changes its appearance everywhere in Photos, including in albums, slideshows, and projects. To edit a photo without changing it everywhere, first duplicate the photo and then edit the duplicate.

Open Photos for me

  1. Double-click the photo, then click Edit in the toolbar.

  2. Click Crop in the toolbar.

    Tip: To quickly see the crop and straighten tools while editing, press C. Press C again when done making changes.

  3. Do any of the following:

    • Crop or straighten the photo automatically: Click Auto.

    • Crop manually: Drag the selection rectangle to enclose the area you want to keep in the photo.

    • Crop to specific dimensions: Click Aspect, then choose the aspect ratio you want.

      For example, for a square photo in a photo book, choose Square. For printing the photo, choose one of the preset print ratios, such as 10 x 8. To size a photo for use in a high-definition video, choose 16 x 9. Or choose Custom to enter a custom format for a photo.

    • Flip the image: Click Flip to flip the image horizontally. Option-click to flip the image vertically.

    • Straighten the image manually: Drag the tilt wheel to adjust the angle of the photo.

    • Remove the current cropping or straightening: Click Reset.

  4. When finished making changes, do one of the following:

    • Save your changes: Click Done, press C, or click Crop again.

    • Stop cropping without saving your changes: Press Escape (Esc).