Convert and resize in one offline step
Normally you'd convert the format on one site and resize on another. Here it's a single pass: pick the output format and, if you want, give it a pixel size or a KB target at the same time. A heavy PNG screenshot can come out as a JPG under 50 KB in one go.
It all runs locally, so there's no upload, no queue and no size limit from a web server — and documents with personal details never leave your PC.
Which format should you pick?
Each format is good at something different. Choose based on what the image is and where it's going — and note that a lot of government and exam portals specifically require JPG.
- JPG — photos, and most passport/exam uploads; smallest files at a given quality
- PNG — screenshots, logos and sharp text; keeps edges crisp but files are larger
- WebP — smaller than JPG at similar quality, good for the web
- BMP — uncompressed and large; only when a tool specifically asks for it
Converting for exam and passport uploads
The most common real-world need: a portal insists on JPG, but your photo is a PNG or a phone screenshot in another format. Convert it to JPG here and, in the same step, fit it to the portal's KB cap.
Remember that converting a PNG with sharp text to JPG can add faint fuzz around edges, and squeezing to a tiny KB target adds a little more. For a portrait photo that's fine; for a pure signature, start from a clean scan and keep the target no smaller than the portal demands. If your portal lists a limit that's not shown here, check your portal's exact requirement.