Crop by pixels and coordinates
- Open the picture. The size and position panel is already open.
- Type W and H for the size of the crop, then X and Y for its top-left corner. The box moves as you type; dragging updates the numbers.
- Press 1 or 100% (actual pixels) to check the edges at true size, nudge with the arrow keys, then crop.
Lock the ratio to keep W and H in proportion; unlock it to set them independently. Every number shown is the number exported — the result panel repeats the final dimensions so you can confirm.
Crop size versus output size
Crop size is the region taken from your picture, in its own pixels. Output size is optional: an exact final width and height, such as 1200 × 630 for a link preview. Setting an output size locks the crop to the same shape; the crop is then scaled with a high-quality filter. If the crop is smaller than the output size you are warned first, because enlarging costs sharpness.
Pixel-exact means pixel-exact: with no output size set, the saved file contains exactly the selected source pixels, verified by an automated test suite on every release. See also lossless JPG crop.
Frequently asked questions
Where is 0, 0?
The top-left corner of the picture as you see it (after any rotation). X grows to the right, Y downward, both in pixels of the original picture — not screen pixels.
What if I type a size bigger than the picture?
It is limited to the picture and a note tells you so. Nothing is silently enlarged — if you really want a larger file, set an output size and confirm the warning.
Can I use percentages?
Yes — switch units to % and every field works as a percentage of the picture’s width or height.
Can I type sums?
Yes: 1920/2, 1080*4/5, or +10 / -10 relative to the current value. Arrow keys step by 1, Shift by 10.