When to use it
The most-cropped PNGs are screenshots - and screenshots are exactly the files with things worth trimming out: browser chrome, taskbars, other windows, notification popups. Crop your PNG losslessly on your device; nothing you trim away is ever seen by anyone else.
- Trim browser chrome and desktop edges out of screenshots before sharing.
- Cut one component out of a full-page UI export.
- Extract a chart or table from a larger dashboard capture.