What is the SSC signature size?
Recent SSC notices ask for a JPG signature of 10KB to 20KB, about 4.0 cm wide × 2.0 cm tall, signed in your normal running hand (not in capital letters). Upload a photo or scan of your signature and this SSC signature resizer crops the extra paper, makes the background white, darkens the ink and saves a file between 10KB and 20KB. It checks the size before you download.
SSC signature requirements
| Rule | Requirement (recent notices) |
|---|---|
| File size | 10KB – 20KB |
| Format | JPG / JPEG |
| Dimensions | About 4.0 cm (width) × 2.0 cm (height) |
| Ink | Black or dark blue pen on white paper |
| Style | Your own running signature, no capital letters |
Always confirm the current rules in your notification on the official SSC website.
What 4.0 × 2.0 cm means in pixels
A portal reads pixels, not centimetres. The pixel count depends on the DPI used to convert the size. The tool includes these presets:
- 4 × 2 cm at 150 DPI = 236 × 118 px (default, balanced for 10–20KB)
- 4 × 2 cm at 200 DPI = 315 × 157 px (sharper, still fits in 20KB)
- 140 × 60 px (a common small size used by many portals)
All three keep your signature inside the 10–20KB range.
How to make an SSC signature
- 1Sign on white paper
Use a black or dark blue ballpoint pen. Sign a little larger than usual, in the box you would use on a form.
- 2Photograph or scan it
Hold the phone straight above the paper in daylight. Avoid flash and shadows.
- 3Upload and check the preview
Auto-crop and background cleaning are on. If thin strokes disappear, lower the cleaning strength.
- 4Download when ✓ Valid
The file is between 10KB and 20KB at 4 × 2 cm.
Why the 10KB minimum matters
A clean signature on white paper is mostly empty space, so it often compresses to only 3KB–6KB. Many tools give you that tiny file, and the SSC portal then shows "file size should be at least 10KB". This tool first uses the highest quality. If the file is still small, it adds a harmless padding block inside the JPG to reach 10KB, without changing how your signature looks.
Signature mistakes to avoid
- Signing in CAPITAL letters. Use your normal signature.
- Gel or sketch pen. Thick ink smudges and looks blotchy after compression.
- A photo of the whole page. Your name becomes a thin line. Auto-crop fixes this.
- Different signatures on different forms. Your signature is compared at the exam centre and during document verification.
- Grey or yellow paper background. The cleaning step turns it pure white.
Related tools
Need the photo too? Use the SSC Photo Resizer. For other exams, open Signature for Exam Form, which has presets for IBPS, NEET, UPSC and CTET. For a very shadowed photo, start with Clean Signature Background. Everything runs on your device.
Frequently Asked Questions
What is the SSC signature size?
Recent SSC notices ask for a JPG signature between 10KB and 20KB, about 4.0 cm wide and 2.0 cm tall.
How do I resize my signature for SSC?
Upload your signature on the PhotoKB SSC Signature Resizer. It keeps 4 × 2 cm and 10–20KB by default. Download when the status shows Valid.
Why does SSC say my signature is less than 10KB?
Clean signatures compress to a few KB. This tool adds a harmless padding block inside the JPG so it meets the 10KB minimum without changing the image.
Can I sign in capital letters for SSC?
No. Use your normal running signature. Signatures in capital letters are not accepted.
Which pen should I use?
A black or dark blue ballpoint pen on plain white paper gives the clearest result.
Is my signature uploaded anywhere?
No. Everything is processed in your browser on your own device.
About this tool
Built and maintained by the PhotoKB Editorial Team. We test every tool with real phone photos, scans and PDFs before each update. Exam and portal values are based on public official notifications. PhotoKB is not linked to any exam body, so always confirm current rules on the official website. Last updated: 8 November 2026.