Compress Image to 15 KB
Shrink any photo or signature to under 15 KB, right in your browser.
or browse filesdrop images here or paste · see all compressors
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Shrink any photo or signature to under 15 KB, right in your browser.
or browse filesdrop images here or paste · see all compressors
Open your picture and it is compressed to less than 15 KB, at or under the cap, automatically. The tool searches for the highest quality that stays below the cap and scales the dimensions down only when a large photo cannot fit otherwise. The size card shows the original size, the new size and the exact saving, and the preview is decoded from the actually compressed bytes, so you see precisely what the form will receive.
The 15 KB limit sits between the usual signature cap of 10 KB and the photo cap of 20 KB, and plenty of registration and exam forms use it for both fields. A scanned signature on white paper fits with room to spare. A face photo fits at around 250 to 400 pixels on its long side, which is exactly the size those forms display anyway.
If your form names another number, compress image to 10 KB, 20 KB, 25 KB or 50 KB instead; every page opens with its target set, and the presets carry the picture across. For any other cap, type the number into the target box, or switch to Quality for a slider - which is the mode the main Compress Image tool opens in. The full compressor collection shows every cap side by side.
At sizes this small the format matters. JPG and WebP compress photos and scanned signatures far better than PNG, which is lossless and often cannot reach 15 KB without heavy downscaling. That is why this page saves as JPG by default even when you upload a PNG; WebP and PNG remain one tap away on the download button.
Your photo or signature never leaves your device. Compression happens entirely in your browser, with no upload, no queue and no account.
Open the photo and the tool automatically finds the highest quality that fits under 15 KB, reducing the dimensions just enough when the picture is large. Check the preview and download; the size shown is measured from the real encoded file.
Around 250 to 400 pixels on the long side for a face photo. Signatures fit at larger dimensions because most of the image is white paper.
Yes. The engine trades exactly as much quality as the cap requires and no more, and the preview shows the real result so you can confirm text and faces stay clear before uploading.
No. Everything happens in your browser and the compressed file saves straight back to your device. No server ever sees the image.