URLTO GUIDE
Distinguish compression from reducing pixel dimensions
Compression exports at the same pixel dimensions. Review resizing first for oversized images.
URLTO editorial · Updated
Image compression · series03 / 10
Input and processing example
Compare it yourself · Illustrative example
원본 / Original: 2400 × 1600 압축만 / Compression only: 같은 크기 / same dimensions 축소 후보 / Resize candidate: 1200 × 800
Steps to verify
- Check display dimensions.
- Prepare appropriate pixel dimensions.
- Compare compression of that copy.
How to interpret the result
Resizing changes pixel detail; quality changes encoding. Separate the steps because their effects differ.
Deciding what to do next
Keep the original and compare quality on a resized copy. Reusing lossy exports as sources can compound losses.
Feature scope
Export a new file at the same dimensions in the browser. Compare JPEG/WebP quality and format; PNG quality behaves differently and the output is not always smaller.
Frequently asked questions
Does compression also reduce width?
This feature retains dimensions. Use the resize tool separately.