Crop vs Resize: What’s the Difference?
Resize changes an image’s pixel dimensions and keeps the whole picture: everything in the frame stays, just with more or fewer pixels. Crop removes part of the picture to make a new frame, often a new shape, and keeps the remaining pixels at full detail.
Side by side
| Aspect | Resize | Crop |
|---|---|---|
| Keeps the whole picture | Yes | No, edges are removed |
| Changes the shape (aspect ratio) | No, unless you stretch it | Yes, if you choose a new ratio |
| Pixel dimensions | All scaled up or down | Reduced by what you cut away |
| Detail in what remains | Less when shrinking; enlarging can’t add real detail | Unchanged |
| File size | Much smaller when shrinking | Smaller, roughly in proportion to what’s removed |
Which one for common jobs
- Photo too big for email or a website: resize. A 4000 × 3000 photo resized to 1600 × 1200 keeps the whole scene with about a sixth of the pixels.
- Landscape photo needed as a square: crop to 1:1 and choose which part to keep. Resizing alone would squash it.
- Social posts: crop to the platform’s shape, then resize to its size. Social Media Resize does both, cropping from the centre.
- Thumbnails: usually both. Crop to frame the subject tightly, then resize small.
- Remove a distracting edge or zoom in on the subject: crop.
- A form asks for exact dimensions in the same shape: resize.
Getting an exact size, such as 1080 × 1080
Crop to the right shape first with Crop Image, so you decide what is kept. Then resize to the exact size with Resize Image. Doing it the other way round either stretches the picture or adds padding.
When neither is the answer
To make a small image bigger without blur, neither helps much: enlarging spreads the same pixels further (see AI Upscaling vs Normal Image Resizing). To make a file smaller without changing its dimensions, compress it with Compress Image.