PNG vs JPG: Choosing the Right Image Format
Saving the wrong image in the wrong format is an easy, invisible mistake — a JPG screenshot of text looks slightly blurry around the edges, and a PNG photo takes up five times the file size it needs to, and neither problem is obvious until you know what to look for.
The core difference: lossy vs. lossless
JPG uses lossy compression, which permanently discards some image detail to shrink file size — imperceptible at reasonable settings for photos, but visible as blur or blocky artifacts around sharp edges and text. PNG uses lossless compression, preserving every pixel exactly, which keeps text and hard edges crisp but results in larger files for photo-like content.
When JPG is the better choice
Photographs and other images with smooth gradients and complex color variation compress very efficiently under JPG's lossy algorithm, because the human eye doesn't easily notice the specific detail being discarded in those regions. This makes JPG the standard choice for photos, product images, and most camera output.
When PNG is the better choice
Screenshots, logos, icons, and any image containing text or sharp geometric edges benefit from PNG's lossless compression, since JPG's artifacts are most visible exactly around hard edges and fine text — the two places PNG handles cleanly.
Transparency: PNG's other advantage
PNG supports an alpha channel for transparency, allowing part of an image to be see-through — essential for logos or icons placed over varying backgrounds. JPG has no transparency support at all; any transparent area gets filled with a solid color (usually white) when saved as JPG.
Quick decision guide
| Content type | Recommended format |
|---|---|
| Photos, camera images | JPG |
| Screenshots, text-heavy images | PNG |
| Logos, icons | PNG |
| Any image needing transparency | PNG |
Frequently asked questions
No — once JPG's lossy compression has discarded detail, converting to PNG afterward only preserves what remains at that point; it can't recover the original discarded information.
PNG's lossless compression works well on flat colors and sharp edges but is far less efficient than JPG on complex, photo-like gradients, which is why photos saved as PNG often end up significantly larger than the same photo saved as JPG.