Drop your scanned signature, get a JPEG between 10 and 20 KB in the wide 3:1 shape SSC’s current notice asks for — the 10 KB minimum is met by spec-valid padding. Nothing is uploaded.
SSC application forms (CGL, CHSL, MTS, JE and the rest, via the One-Time Registration portal on ssc.gov.in) require the scanned signature as a JPEG/JPG between 10 KB and 20 KB. The notice states the shape in centimetres, not pixels: “Image dimension of the signature should be about 6.0 cm (width) x 2.0 cm (height)” — a wide 3:1 strip. This page is preset to 450×150 pixels (that 3:1 shape at a pixel count that encodes cleanly inside 20 KB); 600×200 works too. Both ends of the KB range are enforced, and the notice adds that applications with blurred or miniature signatures are “rejected summarily” — so crop close to the ink and keep it sharp rather than tiny.
Search for an SSC signature resizer and nearly every result — and plenty of coaching guides — says the official dimension is 4.0 cm × 2.0 cm (a 2:1 crop). The current CGL 2026 notice says 6.0 × 2.0 cm, in both the main body (para 9.6) and the registration annexure. A 2:1 crop won't necessarily be rejected — the wording is “about” — but if you're matching the notice, match the notice, not a tool that hasn't re-read it. (This page carried the old figure too until July 2026; the correction came from re-reading the current PDF.)
A small signature crop at high JPEG quality often lands under 10 KB naturally, which the portal rejects. PixFit encodes at the best quality that fits under 20 KB, and if that's below the 10 KB floor it pads the file up with a JPEG comment segment — plain-text padding bytes the JPEG spec explicitly allows. Pixels are untouched and portals accept the file.
There is no photo file to prepare: the application module captures your photograph live through your camera while you fill the form. The notice's own capture rules: good light, plain background, camera at eye level, face fully inside the delineated area, and no cap, mask or glasses/spectacles. It also warns, twice, that pointing the camera at an existing printed photo gets the application rejected. Your appearance at the exam should match the captured photo. Only the signature is uploaded as a file. (No pen and paper to hand? The signature drawing pad can draw-and-fit one to this window — with the honest caveat that SSC's wording means a scan of an ink signature, and SSC matches signatures at later stages.)
The notice repeatedly adds one escape hatch: candidates who opt for Aadhaar-based authentication during OTR will not have their application rejected on photo or signature grounds, and skip producing photo-ID at the exam venue. If you're eligible, opting in converts the scariest rejection ground into a non-issue — the Commission's own words, not this page's advice.
Confirmed for CGL 2026: everything above comes from the Notice of Combined Graduate Level Examination, 2026 (dated May 21, 2026) on ssc.gov.in — signature JPEG/JPG 10–20 KB at about 6.0×2.0 cm, live-captured photo, Aadhaar carve-out. That window closed June 22, 2026 (Tier-I runs August–September); the same OTR account and format carry across SSC exams, and per the Commission's 2026 calendar the MTS/Havaldar 2026 notice is due imminently, with CHSL and Stenographer cycles behind it. Each notice restates the spec — the PDF for your exam is the authority if it differs.