Choose JPG, PNG, or WebP for the Right Image

Start with the image's purpose

Choose a format based on how the image will be used, not only on the smallest file size shown by an export dialog. Photographs, logos, screenshots, and transparent graphics have different needs. Preserve an original master copy before converting, especially when the source contains transparency or an editable layered file.

Use JPEG for photographs when lossy compression is acceptable

JPEG is widely supported and often practical for photographs with many colors and gradual tones. It uses lossy compression, so saving repeatedly at lower quality can introduce visible artifacts around edges and fine detail. Export from the original when possible and inspect the result at its actual display size.

JPEG does not support transparency. Transparent pixels will be flattened against a background during conversion, so choose a deliberate background color before creating a JPEG version of a logo or cutout image.

Use PNG when transparency or crisp edges matter

PNG preserves image data without the same lossy artifacts and supports transparency. It is a strong fit for interface screenshots, diagrams, and graphics with sharp edges, although a photographic PNG can be much larger than a comparable compressed photograph.

If a PNG is unexpectedly large, check whether the image needs all of its original pixel dimensions. Resizing can reduce the amount of data while keeping the edges and transparency that motivated the PNG choice.

Consider WebP for web delivery

WebP supports lossy and lossless encoding as well as transparency, and can reduce file size for many web images. Confirm that the browsers, publishing platform, and downstream workflow support the format you choose. Keep a compatible fallback when a recipient or older system cannot open the converted file.

After conversion, check dimensions, transparency, color, and text legibility. A format change is not a substitute for reviewing the image. Choose an output that meets the actual delivery requirements and retain the source for future edits.

Frequently asked questions

**Which format should I use for a photograph?**

JPEG is broadly compatible and often suitable when lossy compression is acceptable. WebP may provide a smaller web asset; compare quality and support for the destination.

**Which format preserves transparency?**

PNG and WebP support transparency. JPEG does not, so it will flatten transparent areas against a background.

**Will converting an image improve its quality?**

Conversion changes encoding and may reduce quality when lossy compression is used. It cannot restore detail that was already removed from the source.