Sukat · SSC · Photo + Signature

Hit SSC’s tight photo & signature caps in one workflow

SSC CGL, CHSL, MTS, GD Constable, JE — the application form caps the candidate photo at 20–50 KB and the signature at 10–20 KB. Much tighter than UPSC’s 300 KB ceiling. Sukat hits both targets in the same browser session, JPG out, edges preserved.

Compress SSC photo & signature →
Last reviewed: May 2026
SSC photo and signature countdown: 4 MB to 32 KB, 1.2 MB to 14 KB Two stacked countdown panels. Top panel: SSC photo limit 50 KB, current size drops from 4 MB through 980 KB, 240 KB, 72 KB and lands at 32 KB. Bottom panel: SSC signature limit 20 KB, current size drops from 1.2 MB through 280 KB, 64 KB, 28 KB and lands at 14 KB. SSC PHOTO · 20–50 KB LIMIT 50 KB ← SSC photo ceiling CURRENT SIZE 4.0 MB 980 KB 240 KB 72 KB 32 KB SSC SIGNATURE · 10–20 KB LIMIT 20 KB ← SSC signature ceiling YOUR SIGNATURE CURRENT SIZE 1.2 MB 280 KB 64 KB 28 KB 14 KB binary search · both files in one session · JPG out for ssc.gov.in
How to

Compress your SSC photo and signature

Three steps. Both files in the same session — no separate photo and signature tools.

Upload both files

Drop the candidate photo and the signature scan onto Sukat at the same time. JPG, PNG, HEIC (iPhone), or WebP — all decode locally. There’s no separate signature workflow; both files queue together.

Crop and set JPG output

Photo: Crop to head-and-shoulders, plain white behind — click Remove Background if the original was indoors. Signature: crop tight to the ink so whitespace isn’t eating KB. Set output to JPEG for both — SSC explicitly requires .jpg.

Set 30 KB and 15 KB targets

Photo: target 30 KB (a safe value inside SSC’s 20–50 KB window). Signature: target 15 KB (safe inside 10–20 KB). Click Convert & Download; both files save locally as .jpg.

When you need it

Which SSC exams use this format

Every Staff Selection Commission exam runs on the OTR (One-Time Registration) photo + signature pair. Tighter caps than UPSC, identical workflow across exams:

  • SSC CGL (Combined Graduate Level). The flagship Group B and C central-government exam — Income Tax Inspector, Assistant Section Officer, Auditor, and similar posts.
  • SSC CHSL (Combined Higher Secondary Level). Clerks, lower-division clerks, postal assistants, and data-entry operators — same 20–50 KB photo, 10–20 KB signature.
  • SSC MTS (Multi-Tasking Staff). Non-technical Group C posts. Mobile-heavy applicant base, which is exactly where Sukat’s phone-first workflow shines.
  • SSC GD Constable. CAPF (BSF, CRPF, CISF, ITBP, SSB), NIA, SSF, and Assam Rifles. High-volume exam where portal rejections waste a window.
  • SSC JE (Junior Engineer). Civil, Mechanical, Electrical, and Quantity Surveying engineers across central engineering departments.
  • SSC CPO Sub-Inspector. Delhi Police and CAPF SI recruitment — identical OTR specification.
Why Sukat

Tuned for SSC’s tight ceilings

UPSC gives you 300 KB of headroom. SSC gives you 50. The compressor needs to be precise, not generic.

Lands inside the SSC window first try

SSC’s 50 KB photo cap is below what most camera apps export at any quality setting. A blunt quality slider overshoots or undershoots. Sukat binary-searches for the highest quality that fits under 50 KB — the safe target is ~30 KB, leaving a margin against portal rounding. Same logic for the signature at ~15 KB under the 20 KB cap.

Faces stay recognisable at 30 KB

SSC’s 50 KB photo cap sounds aggressive, but a 300×400 px JPEG portrait holds face geometry cleanly down to 30 KB — eye, nose, and mouth edges are the highest-entropy parts of the image and the JPEG encoder weights them first. Sukat’s pipeline preserves those edges before trimming background detail.

Signature ink stays crisp at 15 KB

A signature is line-art on white — the most compressible content there is. A 600×200 px signature scan typically lands at 15 KB JPG with no visible edge softening. Sukat’s encoder prioritises stroke contrast over paper texture, so the ink stays sharp while whitespace compresses for free.

JPG output by default

SSC explicitly requires .jpg for both files — the portal rejects PNG, WebP, and HEIC outright. Sukat defaults the format dropdown to JPEG on this page so the right format is chosen even if you skim past it.

HEIC input handled

iPhone candidates can drop a raw .heic from the camera roll — Sukat decodes it in-browser and outputs JPG. No detour through Photos > Export.

Privacy

Photo and signature are sensitive identity assets. Sukat runs entirely on the Canvas API — nothing leaves your device. Verifiable in airplane mode after the page loads.

Questions

FAQ

What are SSC’s exact photo and signature dimensions?

SSC’s OTR specification commonly lists a photo at roughly 3.5×4.5 cm (around 300×400 px at 200 DPI) and a signature at roughly 4×2 cm (around 140×60 to 200×230 px depending on the cycle). File-size ranges are 20–50 KB for the photo and 10–20 KB for the signature. Cross-check the current notification on ssc.gov.in before submitting — numbers occasionally drift between cycles.

Does SSC accept anything other than JPG?

No. The SSC portal accepts .jpg / .jpeg only for both the photo and the signature. PNG, WebP, HEIC, and PDF are rejected at the upload step. Sukat defaults the output format to JPEG on this page so you don’t miss the switch.

Will my face still be recognisable at 30 KB?

For a typical head-and-shoulders portrait, yes. A 300×400 px JPEG at quality ~70 lands comfortably around 30 KB while keeping eye, nose, and mouth detail sharp. Faces look bad at 30 KB only when the compressor downscales to thumbnail dimensions instead of dropping quality first — Sukat does the opposite.

How should I crop the signature scan?

Sign in dark blue or black ink on plain white paper, then scan or photograph it. Open Crop in Sukat and trim tight to the ink — if the bounding box carries blank paper, those pixels eat into your 20 KB budget without helping legibility. Aim for roughly 3:1 width-to-height, similar to the way the portal renders the upload preview.

Will the SSC portal actually accept the file?

Yes — Sukat’s output is a standard JPEG with the correct size on disk. The OTR portal checks file extension, file size in KB, and pixel dimensions. A 32 KB photo at 300×400 px and a 15 KB signature at 600×200 px clear every check. The only failures candidates hit are wrong file extensions (PNG instead of JPG) or background colour rejections — both fixable in Sukat before download.

Is this the same workflow as the UPSC page?

Same workflow, different targets. UPSC accepts up to 300 KB for both files; SSC caps at 50 KB photo and 20 KB signature. The photograph itself can be the same image, just compressed to different targets for each exam. Keep the original at full resolution; Sukat handles the rest. The full UPSC-specific page is at UPSC Photo & Signature Compressor.

State the SSC caps. Sukat hits 30 KB and 15 KB.

Free, browser-based, no upload, no watermark. JPG out, edges preserved, ready for CGL, CHSL, MTS, GD Constable, JE, and CPO.

Compress SSC photo & signature →