Convert images without obvious quality loss
Control dimensions, quality and repeated encoding.
What matters
Resize once from the best available source, keep aspect ratio, preview text and gradients at 100%, and avoid repeated lossy saves. Compare output size only after checking visible artifacts.
A safe workflow
- Keep the source unchanged.
- Test on a representative copy.
- Review the output for meaning, not only file size or a green status.
- Record the settings that worked.
Common mistake
Automation can make a wrong assumption repeat faster. Confirm encoding, units, schema meaning or visual quality before applying a result broadly.