How to resize an image without losing quality

Resizing an image changes its width and height in pixels. Done right, a smaller image looks just as sharp at the size it is shown, loads faster and fits upload limits. Done wrong, it ends up stretched or blurry.

Resize in 3 steps

1. Open Resize Image and upload a JPG, PNG or WebP.
2. Enter the width you need, for example 1200 px. Leave the height empty to keep the proportions.
3. Click Process to download the resized image.

Rules that keep images sharp

• Make images smaller, not bigger. Enlarging cannot invent detail, so it always looks soft.
• Keep the proportions. Enter only the width (or only the height); DocuTools keeps the aspect ratio so nothing gets squashed.
• Resize from the original. Resizing an already resized copy loses a little quality each time.
• Match where it will be shown. A website hero image rarely needs more than 1600–2000 px wide; a profile photo rarely more than 400–800 px.

Resize, then compress

Fewer pixels already means a smaller file. If you still need a smaller file, compress it afterwards with Compress Image, or use Compress Image to Size when a form gives you a maximum like 200 KB. The "Photo for online forms" workflow does both in one click.

PNG screenshots with text stay sharpest when you resize by whole fractions, for example to exactly half the width.