Signature resize 10 to 20 KB for exam forms
Compress a signature under 20 KB for exam forms. A form that also publishes a 10 KB minimum can still reject a file that is too small. Open the IBPS or SSC exam kit when your notice names both limits.
In-browser Never uploaded Free, no sign-up Updated 25 Aug 2026
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300 × 100 · JPG
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How it works
Check the file size you have
Look at the size of the signature file you have now. Above 20 KB it needs compressing. Below the minimum your form publishes, pick that exam preset instead of stretching the scan.
Sign on white paper
Sign with dark ink on plain white paper, then scan or photograph it in good light so the lines stay sharp.
Upload and crop wide
Upload the image and use the wide crop so the signature fills the frame without blank margins.
Pick a KB target or an exam preset
20 KB and 10 KB are upper limits for ordinary forms, not targets. On a 10-20 KB form pick the IBPS Clerk or SSC CGL preset so the published minimum is applied too. For UPSC, switch to the official triple-signature preset.
Check and download
Make sure the file sits inside the limit, then download the JPG.
Questions
Can I make a signature under 20KB?
Yes, in most cases. You see whether the file came out under the KB limit you picked before you download.
Why was my signature rejected as too small or 'miniature'?
SSC's signature advisory says your signature should fill at least 80% of the signature box — small (miniature) signatures are the most common reason for rejection. Sign big with a dark pen, crop close to the signature, and use the SSC CGL preset so the size and format match the official rule.
Why do forms say 10 to 20 KB instead of just 'under 20 KB'?
Because it is a range with a minimum, not only an upper limit. The signature window SSC CGL and IBPS publish is 10-20 KiB, so a file below the minimum fails the same size rule an oversized one fails. The default setting here is an upper limit only — pick the IBPS Clerk or SSC CGL preset and the published minimum is applied before you download.
What pixel size is a 10-20 KB signature?
There is no single pixel size. IBPS (PO/Clerk/RRB) publishes both: 140 x 60 px at 10-20 KiB. SSC CGL publishes the same 10-20 KiB window but states its dimensions in cm, not pixels. RSSB / RSMSSB accepts 280 x 80 up to 560 x 160 px at 20-50 KiB. UPSC asks for a 350-500 px square at 20-100 KiB. Pick your exam's preset.
What is 6 x 2 cm in pixels for a signature?
About 472 x 157 pixels at 200 DPI. SSC publishes the signature as 6.0 cm x 2.0 cm inside a 10-20 KiB window and gives no pixel figure at all — the 472 x 157 px equivalent is SarkariDoc's own conversion (cm / 2.54 x 200 DPI) for on-screen work, not an SSC rule, so do not quote it back as one. The SSC CGL preset already crops to that same 3:1 shape, so you do not have to set the pixels yourself.
Is my signature uploaded to a server?
No. Your signature stays in the browser on this page. Nothing is uploaded.
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Everything else about this tool
Signature size by exam
| Exam | Dimensions | File size | Format | Verified |
|---|---|---|---|---|
| SSC CGL | 6.0 x 2.0 cm (3:1) | 10-20 KiB | JPG | 2026-08-06 |
| UPSC (triple signature) | 350-500 px square; 3 signatures | 20-100 KiB | JPG | 2026-08-06 |
| IBPS (PO/Clerk/RRB) | 140 x 60 px | 10-20 KiB | JPG | 2026-09-04 |
| RSSB / RSMSSB | 280 x 80 to 560 x 160 px | 20-50 KiB | JPG | 2026-08-06 |
| UPPSC OTR | 6 x 3 cm (200 DPI) | up to 30 KiB | JPG | 2026-09-04 |
Sources: each exam's official notification via its SarkariDoc exam page — SSC CGL 2026 para 9.6, the UPSC online-application instructions, the IBPS scanning-and-upload guidelines, and the RSSB/RSMSSB and UPPSC OTR notices. SSC CGL and UPPSC state their signature dimensions in cm, not pixels; any pixel equivalent quoted on this page is SarkariDoc's own conversion at 200 DPI (cm / 2.54 x 200), not a figure the portal publishes.
Need this exam's exact size?
These KB limits suit ordinary forms. Exam portals also check pixels, file type, crop and minimum KB. Open that exam's page for the official size.