Change image width and height, fit within a box, or scale by percentage.
How to use
Pick a mode. Fit within keeps proportions. Exact size can stretch the picture. Percentage scales both sides equally.
Settings and limitations
Enlarging an image cannot add real detail, so upscaling is off unless you allow it. Output is limited to 16000 px per side and 50 megapixels.
Limits: 25 MB and 50 megapixels per image.
Troubleshooting
If a file is rejected, check that it is a real JPG, PNG or WebP and not damaged. If a large batch is slow, process fewer files at once.
FAQs
Will my image look stretched?
Only in Exact size mode when the ratio differs. The tool shows a warning.
What does fit within mean?
The image is scaled down so it fits inside your width and height, with its proportions unchanged.