Cut an image down to exactly the area you need by specifying a pixel box — useful for removing unwanted edges or focusing on one part of a photo.
Frequently asked questions
X and Y are the top-left corner of the area you want to keep (in pixels from the image's top-left), and width/height are how large that kept area should be — open your image in any viewer that shows pixel coordinates to work these out.
No — cropping just keeps a sub-region of the original pixels exactly as they were; nothing is resampled or compressed unless you use a separate compression tool afterward.
Keep the box within the original image's dimensions — a box that extends past the edge will be clipped to whatever image data actually exists there.