Resize image
Resize an image to the width and height you need. Type the size in pixels or as a percentage, and resize several pictures in one go.
How the files you choose are handled is set out in the privacy policy.
How to resize an image
- Tap Choose pictures and select one or more files.
- Type the width or the height you want, in pixels. With one picture chosen, the other side fills itself in.
- Press Resize, then save the picture, or all of them as a ZIP.
Width, height and proportions
A picture's proportions are the relation between its width and its height. Keep them and the picture looks the same, only larger or smaller. Ignore them and people look squashed or stretched.
| You type | Keep the proportions ticked | Not ticked |
|---|---|---|
| Width only | Height follows the picture | Height follows the picture |
| Height only | Width follows the picture | Width follows the picture |
| Both | The picture fits inside that box, whole and unstretched | Exactly that width and height, stretched if need be |
When several pictures of different shapes are resized together, typing only a width gives them all the same width and each its own height. Typing both, with proportions kept, fits each one inside the same box.
Sizes people ask for
| Use | Size in pixels |
|---|---|
| Full HD screen, slides, a wallpaper | 1920 × 1080 |
| Email and chat | 1280 on the longer side |
| Square profile picture | 400 × 400 up to 1080 × 1080 |
| Passport-style photo for an online form | Whatever the form states, often 600 × 600 |
| A print at 300 dpi, 4 × 6 inches | 1200 × 1800 |
| A print at 300 dpi, A4 | 2480 × 3508 |
For print, multiply the size in inches by the dots per inch the printer asks for. A 5 × 7 inch print at 300 dpi needs 1500 × 2100 pixels.
Smaller is safe. Larger has limits
Making a picture smaller throws pixels away, and it stays sharp. This image resizer reduces in several gentle steps, which keeps fine lines and text from turning jagged.
Making a picture larger has to invent pixels that were never there. The result has the size you asked for, but it is softer than a photo taken at that size. Up to about double usually looks acceptable. Beyond that, edges blur.
Resizing changes the file size too
Halving the width and height leaves a quarter of the pixels, and the file shrinks by roughly as much. If the goal is a smaller file and the size in pixels does not matter, compress image may be the better tool. To cut away the edges of a picture, as opposed to shrinking all of it, use crop image.
Photos are turned the right way up before resizing, and the camera details stored inside them, such as the date and location, are not copied into the new file.
Questions
How do I resize an image without losing quality?
Make it smaller, not larger, and keep the quality on High. Reducing keeps a picture sharp. Enlarging always softens it.
How do I resize a picture to an exact size like 600 × 600?
Type both numbers. If the picture is not already square, either untick Keep the proportions, which stretches it, or crop it square first and then resize.
Can I resize several pictures at once?
Yes. Choose them together. They are all resized with the same settings and saved as one ZIP.
What is the largest size I can make?
16,000 pixels on a side, and about 40 million pixels in all. Phones may manage less.
Does resizing change the format?
Not unless you ask. A JPG stays a JPG and a PNG stays a PNG. Choose another format under Save as if you want one.
Related converters and guides
- Compress imageMake photos smaller in KB or MB, to a quality or to a size limit.
- Crop imageCut a picture down to the part you want, freely or to a set shape.
- Image converterConvert pictures between JPG, PNG and WebP, several at a time.
- Rotate imageTurn pictures a quarter or half turn, or flip them like a mirror.