Compress Image to 10 KB

10 KB is the smallest size almost any sarkari form will accept, and it shows up as the signature lower bound on SSC (10-20 KB), IBPS clerk/PO and SBI applications, plus the thumb-impression field many of those same portals now demand. Because a signature is just black ink on white, it compresses to this tiny budget without losing legibility — the trick is landing above the floor so the upload isn't rejected as "too small." This tool searches JPEG quality to sit just under 10 KB while staying inside the accepted band, all on your device.

🔒 Everything runs in your browser — nothing is uploaded
Drag & drop an image
or click to browse — you can also paste (Ctrl/Cmd + V)
Compress to under 10 KB
JPG PNG WEBP

🔒 Your image never leaves your device — everything runs in your browser.

10 KB is the smallest size almost any sarkari form will accept, and it shows up as the signature lower bound on SSC (10-20 KB), IBPS clerk/PO and SBI applications, plus the thumb-impression field many of those same portals now demand. Because a signature is just black ink on white, it compresses to this tiny budget without losing legibility — the trick is landing above the floor so the upload isn't rejected as "too small." This tool searches JPEG quality to sit just under 10 KB while staying inside the accepted band, all on your device.

Good to know

  • Tuned for line art — a scanned signature or thumb impression stays crisp even at a 10 KB budget.
  • Lands the file just under 10 KB rather than crushing it to a blur, so it clears the minimum-size check too.
  • Flattens PNG transparency onto white first, so a signature scanned with a transparent layer won't come out black.
  • Shows before → after size and the exact quality used, so you can confirm it fits the SSC/IBPS 10-20 KB signature band.
  • Runs entirely offline in the browser — your signature and thumb impression never leave the device.

Related image tools

Need more control? Use the full Compress Image tool to pick your own target, or Resize Image to change the pixel dimensions first.

How it works

Three steps. No sign-up, no upload, no wait.

1

Add your image

Drop in a JPG, PNG or WebP, click to browse, or paste it — nothing is uploaded.

2

Compress to 10 KB

The tool finds the best quality that still fits under 10 KB.

3

Download

Save the compressed image, ready to upload to the form.

🔒

Private by design.Everything happens right here in your browser. Your files are never uploaded — we never see them.

Frequently Asked Questions

Which forms need a signature under 10 KB? ▼
10 KB is the common signature floor on SSC, IBPS (clerk and PO), SBI and several state recruitment portals — their signature field typically accepts 10-20 KB. Thumb-impression uploads on the same forms use the same tiny range.
My signature file is well over 10 KB — is that a scan problem? ▼
Usually yes. Signatures scanned at high DPI or saved as PNG balloon in size. Cropping tightly to the ink and letting this tool re-encode as JPEG almost always brings it under 10 KB while keeping the strokes readable.
Can a photo be compressed to 10 KB? ▼
A full passport-style photo at 10 KB usually looks blocky, because there's far more detail than a signature. If a form asks for a 10 KB photo, resize the pixel dimensions down first so the small budget covers a smaller image.
Will 10 KB be rejected as too small? ▼
That's why the tool aims for just under the cap rather than the absolute minimum. If a portal insists on a 10-20 KB range, a file that lands around 9-10 KB sits comfortably inside it.
Is anything uploaded to a server? ▼
No. Compression runs in your browser on a canvas — no upload, no account, no server copy of your signature.

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