PNG and JPG solve different image-sharing problems. PNG uses lossless compression and supports transparency. JPG is often smaller for photographs but uses lossy compression and does not preserve a transparent background. Choose according to the picture and its destination rather than assuming that one extension is always better. Changing an extension in a filename is not a real format conversion.
Step-by-step guide
- Check whether the image needs transparent areas. Keep PNG when the background must remain transparent.
- Consider the content: photographs often suit JPG, while screenshots, sharp lettering and simple graphics often suit PNG.
- Check which format your destination accepts and whether it specifies a size limit.
- Use the relevant conversion tool, then download a new copy while retaining the source.
- Inspect flat backgrounds, text edges and any formerly transparent areas before publishing the result.
Practical tips and limitations
Converting a JPG to PNG does not recover detail lost in earlier JPG compression. Converting a transparent PNG to JPG requires an opaque background; inspect the resulting background instead of assuming it will match a website. A large photograph saved as PNG can be much larger without a visible improvement over a good JPG source. For a graphic with small text, compare readability before prioritizing the smallest file. The best delivery format may differ from the format you retain as your editing master.
Frequently asked questions
Is PNG always higher quality?
PNG avoids additional lossy compression, but its quality still depends on the source. It cannot repair existing blur or artifacts.
Which should I use for a cutout?
Use PNG when transparency is required.
How can I reduce the size further?
Use Compress Image and inspect its result; the available settings and savings depend on the image and supported format.
Related tools and guides
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