SSC vs IBPS Signature Rules (2026 Comparison)
Candidates preparing simultaneously for banking (IBPS PO, Clerk, SBI) and staff selection (SSC CGL, CHSL, MTS) often mistakenly assume upload requirements are identical. While both enforce a 10 KB to 20 KB file size ceiling, their dimension units, ink color specifications, and supplementary document mandates have critical differences.
Key Insights at a Glance
- IBPS defines signature dimensions in pixels (140 × 60 px); SSC traditionally measures in centimeters (6.0 × 2.0 cm or 4.0 × 2.0 cm).
- IBPS mandates strictly black ink; SSC permits black or blue ink for CHSL.
- Banking exams require two additional documents: Left Thumb Impression (20–50 KB) and a Handwritten Declaration (50–100 KB).
- Both portals strictly disqualify block or capital letters.
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1. Side-by-Side Specification Matrix
Below is the official specification matrix compiled directly from the latest notification annexures of both recruiting agencies:
| Parameter | IBPS (PO / Clerk / RRB) | SSC (CHSL / Central Portals) |
|---|---|---|
| Signature Dimensions | 140 × 60 pixels | 6.0 cm (width) × 2.0 cm (height) |
| File Size (Weight) | 10 KB to 20 KB | 10 KB to 20 KB |
| Permitted File Format | JPG / JPEG only | JPG / JPEG only |
| Ink Color Requirement | Black ink only (mandatory) | Black or blue ink on white paper |
| Left Thumb Impression | Required (240×240 px, 20–50 KB) | Not required on initial online form |
| Handwritten Declaration | Required (800×400 px, 50–100 KB) | Not required on initial online form |
2. Understanding Pixel vs Centimeter Sizing
When an exam specifies dimensions in centimeters (like SSC 6.0 × 2.0 cm), web scanners calculate pixels based on DPI (dots per inch). At the standard 200 DPI required for scanned government documents:
6.0 cm translates to approximately 472 pixels wide, and 2.0 cm translates to approximately 157 pixels high. IBPS, on the other hand, specifies 140 × 60 pixels directly in their upload portal code.
Our specialized exam pages (e.g. /exams/ssc-chsl and /exams/ibps-po) handle this conversion automatically under the hood, ensuring your file satisfies both dimension and byte boundaries.
3. Additional Documents Required for Banking Portals
When filling an IBPS or SBI application form, your signature is only one of four essential visual assets:
1. Passport photograph (200 × 230 px, 20–50 KB) 2. Candidate signature (140 × 60 px, 10–20 KB) 3. Left Thumb Impression on white paper with blue/black ink (240 × 240 px, 20–50 KB) 4. Handwritten Declaration written in English in running hand (50–100 KB, 800 × 400 px).
Recommended Tools for Document Preparation
Frequently Asked Questions
Can I use the exact same signature file for both SSC and IBPS?
If you used black ink on plain white paper and resized it to 140 × 60 pixels between 10 KB and 20 KB, it will pass both IBPS and SSC portals cleanly without triggering validation errors.
What happens if I sign the IBPS handwritten declaration in capital letters?
The entire IBPS application will be cancelled. The declaration must be written in the candidate's own running handwriting in English only. Typing or writing in capital letters is treated as invalid.