Composition doesn’t just happen while you’re shooting. Using the crop tool in your photo editor, you can re-frame your shot later, effectively recomposing it. Through cropping, you can eliminate clutter, or re-balance your image. Sometimes, you shoot with the idea of cropping later, because you simply can’t get the shape you want, in-frame. For example, if you want to shoot a really wide landscape.
But whenever possible, you should always try to compose correctly in-camera—if you have to crop later, you’ll be throwing away pixels, and therefore reducing your maximum print size.
If you're cropping a photo in an image editor, follow these basic cropping rules and tips.