Sukat · Signature · 10 KB

Compress a signature to an exact 10 KB

IBPS, SBI, RRB, NTA — some banking-exam and entrance-test cycles tighten the signature cap from the usual 20 KB to 10 KB. Sukat hits 10 KB precisely, weights detail toward the ink stroke, and downscales pixel dimensions only when quality alone can’t reach the cap.

Compress signature to 10 KB now →
Last reviewed: May 2026
A 1 MB signature scan reduced to fit under a 10 KB exam-portal limit Animation: you set a 10 KB limit; the signature scan counts down from 1.0 MB through 240 KB, 56 KB, 22 KB and lands at 9 KB, under the limit. YOUR SIGNATURE YOUR LIMIT 10 KB ← the tighter banking-exam cap CURRENT FILE SIZE 1.0 MB 240 KB 56 KB 22 KB 9 KB binary search · ~7 re-encodes, edges preserved DONE9 KB — under your limit
How to

Compress a signature to 10 KB

Three steps. At 10 KB, dimensions usually drop to ~300–400 pixels wide — the live preview shows the actual output before you download.

Scan or photograph your signature

Sign on a clean white sheet, scan or take a well-lit phone photo. Drop the image onto Sukat — JPG, PNG, HEIC, or WebP all work.

Set 10 KB and pick JPG

Type 10 in Maximum File Size and select KB. Pick JPEG for almost every exam portal. PNG works for portals that accept PNG signatures (rare at 10 KB — PNG is lossless and downscales hard at this cap).

Convert and download

Sukat binary-searches the quality scale. At 10 KB, quality alone usually can’t fit — the algorithm downscales pixel dimensions and tries again until the output fits under the cap.

When you need it

Where 10 KB signature uploads matter

10 KB is the tighter end of the signature-cap range. Where you’ll meet it:

  • RBI Assistant & SBI Clerk. Several RBI and SBI cycles enforce a 10 KB JPG signature ceiling (down from the usual 20 KB).
  • IBPS RRB Office Assistant & certain cycles. Some IBPS RRB exam years tighten the signature cap to 10 KB.
  • NTA / JEE Main / NEET signature fields. A few NTA-administered application forms cap the signature field at 10 KB.
  • State PSC signature uploads. Several state Public Service Commissions (TNPSC, MPSC, others) carry a 10 KB signature ceiling on specific forms.
  • Government job portals with hardcoded legacy limits. Older portals that haven’t bumped their per-field cap.
  • Tight thumbnail / index requirements. Internal databases storing the signature as a compact index thumbnail alongside the full document.
Why Sukat

Built for the tighter signature cap

At 10 KB, a generic quality slider stops being a useful control. The cap is.

Hits 10 KB, not “close to” 10 KB

State the cap; the algorithm binary-searches the quality scale, then downscales pixel dimensions if quality alone can’t reach 10 KB. The output is under 10 KB at the highest quality that still keeps the signature legible. One pass, every time.

Edges preserved before whitespace

The JPEG / WebP encoder weights detail toward the high-contrast ink stroke; the white paper compresses for free. The signature’s shape stays recognisable even at 10 KB.

JPG output by default

Most exam portals require JPG. Sukat defaults to JPEG; the dropdown switches to PNG / WebP / ICO if your specific portal asks for something else.

Honest about dimensions

At 10 KB, dimensions almost always drop — a 1000-pixel signature scan typically lands around 300–400 pixels wide. The preview shows the actual output dimensions before you download. No surprises.

Privacy

Your signature never leaves your browser. Compression runs on the Canvas API; no upload, no server, verifiable in airplane mode.

Questions

FAQ

Will my signature still be legible at 10 KB?

Yes, for a typical signature scan — the ink-on-paper contrast is the easy case for the JPEG / WebP encoder. The output is usually downscaled to around 300–400 pixels wide, but the signature’s shape stays recognisable. The preview shows what to expect before you click download.

JPG or PNG for a 10 KB signature?

JPG for almost every portal. PNG is lossless and downscales hard at 10 KB — only use it if your portal specifically requires PNG.

How small will the dimensions be at 10 KB?

For a typical signature scan, expect output around 300–400 pixels wide. The preview shows the actual output dimensions before you commit, so you can re-export at a different cap if you need larger.

Is 10 KB too small for a signature?

For most portal-display purposes (where the signature renders at maybe 200×80 pixels), no — 10 KB is enough. If you need a higher-resolution signature for a downstream system, use Compress Signature to 20KB instead.

Is my signature uploaded to a server?

No. Compression runs entirely in your browser via the Canvas API. Your signature never leaves your device.

Can I batch-compress multiple signatures to 10 KB?

Yes. Drop several signature images, set 10 KB, and Sukat compresses each independently. Output downloads as separate files or as a single ZIP.
Related tools

Other sizes & related tools

Compress Signature to 20KB — the standard cap for most banking exams, looser than 10 KB Compress Image to 20KB — same cap for non-signature images Compress Image to 30KB — neighbour for candidate-photo uploads Compress Image to 50KB — common older-portal target Reduce Image Size in KB — pick any custom KB target Image Size Guide — full breakdown by platform and use case

State the cap. Sukat hits 10 KB.

Free, browser-based, no upload, no watermark. Edges preserved, JPG by default, ready for RBI / SBI Clerk / NTA signature fields.

Compress signature to 10 KB now →