Updated · how we check
JKSSB signature size
The JKSSB form takes a signature of about 35 × 15 mm, 10 KB–20 KB, with no file type named. Candidates upload a live photograph as described in Annexure-A of the notice.
JKSSB signature
JPG · 10-20 KB (10,240-20,000 bytes) · 35x15 mm at 300 DPI · white background
PixelFit aims between 10,240 and 20,000 bytes, so the file passes whether the form counts 1 KB as 1,000 or 1,024 bytes. 35x15 mm at 300 DPI is 413x177 pixels.
Fit, background and padding pad with colour · white background · padding off
Saving presets is part of Pro.
The result appears here: the exact byte count, pixel size and quality, the size before and after, a preview and a download button.
The batch kit (one ZIP for up to 500 photos, several photos merged into one PDF) is part of Pro.
JKSSB upload specifications
Values for the JKSSB online application 2026 signature, copied from JKSSB instruction notice 07 of 2026 (07.08.2026), checked 31 October 2026; "not stated" means the source gives no figure for it.
| Upload | Pixel size | Print size | File size | Format | Background |
|---|---|---|---|---|---|
| Signature | 413 × 177 px at 300 DPI (computed; the tool uses this) | 35 × 15 mm | 10 KB–20 KB | format not stated | not stated |
| Category certificate | not stated | not stated | at most 100 KB | not stated |
JKSSB sizes in pixels and millimetres
Print sizes become pixels at a resolution (pixels = mm ÷ 25.4 × DPI); pixel sizes become print sizes the other way round. Computed for the JKSSB uploads at 200 and 300 DPI.
| Upload | Aspect ratio | Megapixels | At 200 DPI | At 300 DPI |
|---|---|---|---|---|
| Signature | 7:3 (print size) | 0.07 MP at 300 DPI | 276 × 118 px | 413 × 177 px |
What the JKSSB KB limits mean in bytes
The JKSSB signature range of 10 KB–20 KB is 10,240 to 20,000 bytes if you want a file that passes whether the portal counts 1,000 or 1,024 bytes per KB: a window of 9,760 bytes to aim for.
The JKSSB category certificate limit of 100 KB is 102,400 bytes when 1 KB = 1,024 bytes and 100,000 bytes when 1 KB = 1,000 bytes; a file of 100,000 bytes or less passes either way.
Estimated JPG file size for JKSSB uploads
Estimated from sizes measured with sharp 0.35.5 / libvips 8.18.7 on public-domain sample images (31 October 2026), interpolated to each target size. Your own scan can land 30-50% either side, which is why the tool measures the real file.
| Upload | Pixel size used | Quality 60 | Quality 75 | Quality 85 | Quality 95 | Limit |
|---|---|---|---|---|---|---|
| Signature | 413 × 177 px | 5.0 KB | 7.0 KB | 10.0 KB | 19.2 KB | 10 KB–20 KB |
Will the JKSSB signature fit the limit?
For the JKSSB signature at 413 × 177 px (35 × 15 mm at 300 DPI), even quality 95, the highest setting estimated here, stays under 20 KB at about 19.2 KB, and quality 85 (10.0 KB) misses the 10 KB minimum.
JKSSB rejection checklist
Upload checks computed from the JKSSB specification; a file that fails any one of them is usually refused at upload or flagged later.
- Signature: The source does not name a file type for the JKSSB signature; JPG is the safe choice for a photo or signature scan.
- Signature: The JKSSB signature file is no larger than 20 KB (20,000 bytes is safe under both KB definitions).
- Signature: The JKSSB signature file is at least 10 KB (10,240 bytes or more); files under the minimum are rejected even when they look sharp.
- Signature: Printed size is 35 × 15 mm.
How to resize your signature for JKSSB
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Prepare the signature
Sign on white paper, then scan or photograph it flat in good light.
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Load the preset
Drop the file into the tool at the top of this page. The "JKSSB signature" preset is already set to 35 × 15 mm and 10 KB–20 KB, in a file type the source does not name (JPG is the safe choice).
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Check the result
Read the before and after sizes: the JKSSB signature must end between 10,240 and 20,000 bytes. If it ends under 10 KB, open "Fit, background and padding" and tick the option to pad a file that ends up below the minimum. Download it.
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Switch to the category certificate
Pick the "JKSSB category certificate" preset, set to at most 100 KB as PDF, and repeat with the category certificate file.
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Upload and preview
Upload the files on the JKSSB form and check the preview before you submit; verify the figures with the official notice first.
What the JKSSB source also says
- Candidates upload a live photograph as described in Annexure-A of the notice.
JKSSB compared with similar forms
JKSSB next to the forms with the closest specifications in this index, so one prepared file can be checked against several forms.
| Form | Photo size | Photo file size | Signature file size |
|---|---|---|---|
| JKSSB (this page) | live capture / none | n/a | 10 KB–20 KB |
| SSC | live capture / none | n/a | 10 KB–20 KB |
| IBPS PO | 200 × 230 px (preferred) | 20 KB–50 KB | 10 KB–20 KB |
| ISRO ICRB | 200 × 230 px (preferred) | 20 KB–50 KB | 10 KB–20 KB |
| MAH B.P.Ed CET | 200 × 230 px (preferred) | 20 KB–50 KB | 10 KB–20 KB |
Where the JKSSB figures come from
Verify with the official JKSSB notice before you submit: forms change between application cycles and the check on the live portal is final.
Sources
- JKSSB instruction notice 07 of 2026 (07.08.2026), Jammu and Kashmir Services Selection Board (JKSSB), checked 31 October 2026: jkssb.nic.in/Pdf/Instruction_Notice_07OF2026_07082026.pdf
- Measured by PixelFit with sharp 0.35.5 / libvips 8.18.7 on 31 October 2026, interpolated to each JKSSB target size, on this sample: handwritten letter with signature, Ulysses S. Grant (via DPLA), public domain: commons.wikimedia.org/wiki/File:Ulysses_S._Grant_letter_t…
Frequently asked questions
What is the signature size for JKSSB?
The JKSSB signature must be 10 KB–20 KB, 35 × 15 mm, in a file type the source does not name (JPG is the safe choice).
How do I resize my signature to 20 KB for JKSSB?
Open the tool on this page with the JKSSB signature preset, drop the file and download the result: it searches JPG quality until the file is under 20 KB and over 10 KB; at 413 × 177 px expect about 10.0 KB at quality 85. Nothing is uploaded.
What pixel size should the JKSSB signature be?
35 × 15 mm. At 300 DPI that is 413 × 177 px; at 200 DPI 276 × 118 px.
Related
Similar forms
- SSC signature size 10 KB–20 KB
- IBPS PO photo and signature size 20 KB–50 KB
- ISRO ICRB photo and signature size 20 KB–50 KB
- MAH B.P.Ed CET photo and signature size 20 KB–50 KB
- SBI photo and signature size 20 KB–50 KB
- TGPSC Departmental Tests photo and signature size at most 50 KB
Compress to the JKSSB limits
- Compress an image to 10–20 KB JKSSB signature
- Compress an image to 20 KB JKSSB signature limit 10 KB–20 KB
- JPG to PDF under 100 KB JKSSB category certificate