SSC Signature Size in KB and cm: 10–20 KB JPG Explained

The SSC signature size is a JPG/JPEG between 10 KB and 20 KB. Recent guides describe it as about 4.0 cm wide and 2.0 cm high, while older SSC notices said about 6.0 x 2.0 cm. Use your normal running signature in black or blue ink, not capital letters. The KB range is what the portal checks most strictly, so get that right first.

This applies to CGL, CHSL, MTS, GD, JE, CPO, Stenographer and other SSC exams, because they all use the same application system. Read your notice to be sure.

SSC signature specs at a glance

Why the dimensions in guides disagree

You will see at least four sets of numbers for the same signature. Here is where each comes from:

• 6.0 x 2.0 cm comes from older SSC notices.
• 236 x 79 px is simply 6.0 x 2.0 cm converted at 100 DPI (6 cm is 2.36 inches, times 100).
• 4.0 x 2.0 cm is what 2026-cycle guides report.
• 140 x 60 px is the bank exam (IBPS/SBI) signature size, which some guides copied.

None of these is wrong in itself; they just come from different years and assumptions. The portal mainly checks file type and KB size. Keep the signature a wide strip, roughly two to three times wider than it is tall, and keep the file between 10 and 20 KB. Our SSC signature resizer uses 280 x 120 px, which fits that shape and is easy to read. If your notice states exact pixels, type them into the width and height fields.

For more on how cm, pixels and DPI relate, see our guide to image size, resolution and DPI.

How to make your SSC signature (step by step)

1. Sign on plain white paper with a black or blue ball pen or gel pen. Sign a few times and pick the neatest one. Leave space around it.
2. Photograph it in daylight. Hold the phone directly above the paper, parallel to it, with the flash off. A scanner works too.
3. Crop tightly. Use crop image with the Free ratio to remove the extra paper, leaving a small margin around the ink. This is the step that makes the biggest difference.
4. Make the ink crisp. If the paper looks grey, run it through black and white image and raise contrast. The SSC resizer also has its black & white option switched on by default for signatures.
5. Resize and compress. Open the SSC signature resizer, choose the cropped image and download signature.jpg. The result shows the pixel size and whether it is within 10–20 KB.
6. Check it. Zoom in. Every stroke should be clear, and the file should be a .jpg between 10 and 20 KB.

SSC signature resize to 20 KB, and what if it is under 10 KB?

Signatures are mostly white space, so they compress very well. A small signature can easily come out at 6 or 7 KB, which fails the 10 KB minimum. The SSC resizer handles this: if the compressed file is below the minimum, it adds harmless padding data to reach it, without changing the picture.

If your file is over 20 KB, it is usually because the photo was not cropped or is very large. Crop first, then resize. Compress image to 20 KB works as a second step if you prefer to keep your own dimensions.

SSC signature resize in cm

If your notice gives a size in cm and you want to match it exactly, decide on a DPI and convert. At 100 DPI, 4.0 x 2.0 cm is about 157 x 79 px; at 200 DPI it is about 315 x 157 px. Either is acceptable as long as the KB range is right, because portals rarely check DPI. Type the pixel values into the resizer's width and height fields and it will crop and compress to match.

JE, CPO, CHSL and CGL: any differences?

The signature rule is normally the same across SSC exams in a year, since they share one registration and application module on ssc.gov.in. What does differ is whether a photo is captured live or uploaded. In recent cycles SSC has captured the photo live, and you only upload the signature. Our SSC photo with name and date guide explains the photo side.

Use the same signature on every SSC form, the admit card, the exam attendance sheet and document verification. A signature that changes between stages can cause trouble.

Common reasons SSC signatures get rejected

• Signed in capital letters. SSC has said this is not acceptable.
• Outside 10–20 KB, including too small.
• Too faint or blurred, often from a dim photo or a thin pen.
• Not cropped, so the signature is a tiny mark in a big white image.
• Wrong format such as PNG, HEIC or PDF.
• Ruled or coloured paper showing lines behind the ink.
• Uploaded in the photo box by mistake. Name files clearly, such as signature.jpg.

Before you submit

Open the preview in the form. If the signature looks faint, squashed or cut off, fix it now. Correction windows are short and do not always cover every field. Save the final signature file in a folder with your other exam documents so you can reuse it for every SSC form this year.

Questions