Use JPEG for photographic images when a smaller file matters, while understanding the effects of transparency and lossy compression.

PNG files can be large when they contain photographic detail. Converting a photo to JPEG may reduce its size, but JPEG uses lossy compression and cannot keep a transparent background. Transparent areas may need to be placed against a chosen solid color before conversion.

How to approach it

Check the background before exporting and choose a quality level that keeps important details clean. Inspect text, thin outlines, and gradients for artifacts. If you need crisp UI graphics or transparency, PNG may remain the better option despite its larger size.

Checks before you share

Keep an untouched source file, inspect the exported copy at full size, and confirm that the result suits its intended use. If the image contains private information, check the entire frame and its metadata before publishing.

Frequently asked question

What happens to transparent pixels?

They must be flattened against a background or otherwise handled because JPEG has no transparency channel.

For a practical next step, try the Image Compressor. You can also use the JPG to PNG for a related image task.