Compress Signature to 10KB Online
Last reviewed: May 2026
The tightest signature ceiling on any modern recruitment portal is 10 KB — common across IBPS PO, IBPS Clerk, SBI PO / Clerk, RRB Officer Scale I, and a handful of state-PSC banking-track applications. Sukat compresses your scanned signature to exactly 10 KB in your browser. Drop, type 10, download. No upload, no signup.
How to compress your signature to 10 KB
- Upload your scan. Drop the signature file (JPG, PNG, or directly from a phone scan app) onto Sukat's drop zone, click to browse, or paste from clipboard.
- Set 10 KB as the limit. Type
10in Maximum File Size and select KB. Choose JPEG as the output — it's what banking and recruitment portals require. - Convert and download. Click Convert & Download. Sukat binary-searches the JPEG quality scale until the result fits under 10 KB. Signatures are line art, so the output stays crisp.
When do you need a 10 KB signature?
Most government-form signatures sit at the 20 KB lower bound. The 10 KB ceiling shows up in a narrower set of legacy banking-exam portals:
- IBPS Probationary Officer (PO) and IBPS Clerk applications — both commonly cap signatures at 10 KB JPG.
- SBI PO and SBI Clerk — same upload widget pattern as IBPS, same 10 KB ceiling.
- RRB Officer Scale I and RRB Office Assistant — regional rural bank exam portals.
- State-PSC banking-track applications — many state public service commissions reuse the IBPS signature spec for their cooperative bank or rural development bank exams.
- Older corporate document workflows with hardcoded signature ceilings on intranet portals.
- Tender / GeM portals at the tightest end of the spec range.
For most other use cases, 20 KB is the right target — see Compress Signature to 20KB.
Why Sukat for 10 KB signatures
Hits the floor cleanly. Generic compressors give you a quality slider; the same quality 60 setting can produce 5 KB from one signature scan and 18 KB from another. Sukat reverses the problem — set 10 KB, find the highest quality.
Line art compresses well at this size. Unlike a 10 KB photo (which Sukat would have to downscale aggressively), a 10 KB signature usually fits at the original dimensions because there's so little colour data to encode.
Privacy. Your signature is identity-grade. Compression runs entirely in your browser — your scan never reaches a server. Switch to airplane mode after the page loads to verify.
Hindi UI for first-language users. Sukat's interface is available in 10 languages. Most signature compressors are English-only, even though the audience is overwhelmingly Indian.
FAQ
Why would a portal want a signature at only 10 KB?
A handful of Indian banking-exam portals (IBPS PO, SBI PO, RRB Officer Scale I) and older state-PSC sites cap the signature upload at 10 KB. The limit comes from legacy systems sized when storage was expensive. Most signatures compress cleanly under 10 KB because they're high-contrast line art.
Will my signature still be legible at 10 KB?
Yes — this is the strong case for tight signature compression. A 600 × 200 px scan at quality 70–80 already fits under 10 KB. Lines stay crisp because there are very few colours to encode. A 10 KB signature looks no worse than a 20 KB one.
Which exam portals require a 10 KB signature?
Common ones include IBPS PO, IBPS Clerk, SBI PO, SBI Clerk, RRB Officer Scale I, and many state-PSC banking-track applications. Specifications change between recruitment cycles — always cross-check the current notification.
Does Sukat upload my signature anywhere?
No. Compression runs in your browser via the Canvas API. Your signature never reaches a server. You can verify by switching to airplane mode after the page loads — the conversion still works.
Should I pick JPEG or PNG for a 10 KB signature?
JPEG. Banking and recruitment portals overwhelmingly require JPG, and at 10 KB JPEG handles signatures more efficiently than PNG. Sukat outputs with a .jpg extension when JPEG is selected.
My scanned signature has a coloured paper background — can I clean it up?
Yes. Use Sukat's Remove Background tool to drop the paper background, then compress the cleaned PNG to 10 KB JPEG. For ink-on-near-white-paper scans, simple JPEG compression is usually enough.
Other signature and image sizes
- Compress Signature to 20KB — neighbour size, the most common signature target
- UPSC Photo & Signature Compressor — full UPSC OTR workflow
- SSC Photo & Signature Compressor — full SSC OTR workflow
- Compress Image to 20KB — generic 20 KB target for images, not signatures
- Reduce Image Size in KB — pick any KB target for any image
- Image Size Guide — full file-size reference