Cropping is the quickest way to improve a photo. Learn how the rule of thirds works, which aspect ratio each platform expects, and how to crop without losing sharpness.
What cropping fixes
A crop removes distractions at the edges, straightens out a subject that sits awkwardly in the frame and changes the shape of the picture to suit where it will be shown. A snapshot with too much empty floor or sky often becomes a good photo once the frame is tightened around the subject.
The rule of thirds
Imagine two vertical and two horizontal lines dividing the picture into nine equal parts. Placing the main subject on one of those lines, or where two of them cross, tends to look more natural than putting it exactly in the middle. For a portrait, try putting the eyes on the upper line. For a landscape, put the horizon on the upper or lower line rather than across the centre.
Aspect ratios for common uses
Profile pictures and marketplace listings: 1:1. Instagram portrait posts: 4:5. YouTube thumbnails, presentations and most screens: 16:9. Stories, reels and other vertical video covers: 9:16. Standard photo prints: 4:3 or 3:2. Picking the ratio first saves you from a second, unwanted crop when the platform trims the picture itself.
Crop a photo in three steps
Open the Crop Image tool and upload your picture. Choose a ratio or leave it on Free, then drag the box and its corners until the frame looks right; the grid inside the box marks the thirds. Press Apply Crop and download the result.
Do not crop too tight
Every crop throws pixels away. Cut a small part out of a large photo and there may not be enough resolution left for a sharp print or a full-screen view. Leave some space around the subject, and check the pixel size shown under the image after cropping.