Why this tool never uploads your photo
Most 'compress image online' sites upload your photo to their server, process it there, and send it back — meaning your passport photo, signature or ID document briefly lives on someone else's computer, subject to their retention policy and security. This tool does the compression inside your browser using its built-in image engine. Switch off your internet after the page loads and it still works — that's the proof.
For photos of faces and identity documents — which is exactly what form uploads are — that difference matters.
How to hit a form's exact requirements
Portals usually specify both a file size and pixel dimensions. The workflow that always works:
- Read the requirement carefully — e.g. 'photo: 20–50KB, 200×230 pixels, JPG'. Note both numbers.
- Set the target size to the upper limit (50KB in that example) — bigger within the limit means better quality.
- If dimensions are specified, put the required width in the 'max width' box; the tool scales proportionally.
- Compress, download, and re-check the size shown before uploading. If a portal insists on exact dimensions (not just maximum), crop the photo to the right shape first — the camera app on any phone can crop.
What compression actually does to your photo
The tool converts your image to JPG and searches for the highest quality level that fits your target — you always get the best image the limit allows, not a fixed crunch. JPG compression discards fine detail your eye barely notices first; heavy compression (a big photo into 20KB) shows as slight blur and blockiness, which is normal and accepted on every portal.
Two things are changed silently and deliberately: transparent backgrounds become white (JPG has no transparency), and if even minimum quality can't reach your target, the tool reduces the pixel dimensions and tries again — smaller dimensions are the only honest way into very tight limits.
Frequently asked questions
›How do I reduce a photo to 20KB for an exam form?
Choose your photo above, tap the 20 KB preset, and press Reduce Size. The tool finds the best quality that fits under 20KB, converting to JPG. If the form also specifies dimensions (like 200×230 px), enter the width in the max-width box before compressing.
›Is my photo uploaded to a server?
No. The entire compression happens inside your browser on your own device — the photo never leaves it. You can verify: load this page, turn off your internet, and the tool still works. For ID photos and signatures, this is the safest way to compress.
›Why does the output become a JPG file?
JPG is the format every portal accepts and the one that compresses photos smallest at a given quality. PNG is better for screenshots and graphics but produces far bigger files for photos — a PNG photo rarely fits under form limits. Transparent areas are filled with white during conversion.
›Will compressing reduce my photo's quality?
Some, yes — that's what makes the file smaller. The tool always uses the highest quality that fits your target, so a 100KB target barely changes the photo while a 20KB target shows mild softness. Every portal's checkers accept this; they set the limits knowing exactly what compressed photos look like.
›The tool says it can't reach my target size. What do I do?
That happens with very large images and very tight targets. Add a max width (forms rarely need more than 500–1000 pixels — passport-photo uploads are often just 200–300), which shrinks the pixel count and makes small targets easy to hit. The tool also auto-shrinks dimensions as a last resort.