common mistakes
Why Your Exam Signature Gets Rejected
These 5 technical errors cause most rejections on SSC, UPSC, IBPS, NEET, and Railway portals — none of them are about how your signature looks.
Most portals cap signatures at 10–30 KB. A smartphone photo is 2–5 MB — over 100× too large.
Auto-compresses to exact KB limit for your exam
SSC requires exactly 140×60 px. UPSC accepts 350–1000 px. NEET requires 200×50 px. Any other size causes rejection.
Outputs exact pixel dimensions per exam
Portals only accept JPG/JPEG. PNG or WebP from your phone gets rejected even if the size is correct.
Always outputs JPEG regardless of source file
Signatures must be on pure white. Cream, grey, or any tint gets flagged during automated background checks.
Fills background with solid white automatically
Pencil, light blue pen, or low-contrast scans fail ink-detection and get flagged at document verification.
Canvas defaults to high-contrast black ink
Exam-Wise Signature Size Requirements 2026
Each exam board has its own specific signature size requirements. Getting this wrong is the #1 cause of form rejection. Here is a complete reference table for all major exams:
| Exam | Dimensions | Max File Size | Format |
|---|
| SSC CGL / CHSL / MTS / CPO | 140 × 60 px | 12 KB | JPG |
| UPSC CSE / CDS / NDA / CAPF | 350–1000 px range | 300 KB | JPG |
| IBPS PO / Clerk / RRB | 140 × 60 px | 20 KB | JPG |
| SBI PO / Clerk | 140 × 60 px | 20 KB | JPG |
| RRB NTPC / Group D / ALP | 200 × 100 px | 30 KB | JPG |
| NEET UG / NEET PG | 200 × 50 px | 30 KB | JPG |
| JEE Main / JEE Advanced | 200 × 80 px | 30 KB | JPG |
| CUET UG / CUET PG | 140 × 60 px | 12 KB | JPG |
| UGC NET / CSIR NET | 140 × 60 px | 20 KB | JPG |
| MPSC / UPPSC / BPSC | 140 × 60 px | 20 KB | JPG |
| Agniveer (Army/Navy/Air Force) | 140 × 60 px | 20 KB | JPG |
| NDA / NA Written | 350–1000 px | 100 KB | JPG |
Draw vs Type vs Upload — Which Is Best for Exam Signatures?
Drawing is always the safest and most recommended method for critical exams. Your drawn digital signature most closely matches the physical signature you will reproduce at exam centres. Use the Draw tab for UPSC, SSC, and all competitive exams where document verification happens in person.
Typing is useful if your natural handwriting is unclear or if you are applying to a portal that only does automated digital checks (like some state PSC portals). Choose a cursive font that you can practice signing physically.
Uploading is the most practical option if you already have a scanned signature on white paper. It is also ideal for students reapplying to exams and wanting to use the same signature as their previous application. The tool will auto-compress and resize your existing file to meet the new portal's requirements.
SSC Signature Requirements 2026 — Detailed Guide
SSC requires exactly 140×60 pixels, under 12 KB, JPG format, pure white background, black ink. Our quality checker will alert you if your signature has low contrast or insufficient coverage before you generate the output.
NEET and JEE Signature Requirements 2026
NEET UG requires signatures of 200×50 pixels, maximum 30 KB. JEE Main requires 200×80 pixels, maximum 30 KB. Both exams use NTA's portal which has strict automated validation. Our tool pre-loads these exact specs when you select NEET or JEE from the exam grid.
State PSC Signature Requirements 2026
MPSC, UPPSC, BPSC, RPSC, TNPSC, and other state PSC portals typically use 140×60 pixels at 20 KB max — the same as IBPS. All major state PSCs are pre-loaded in our exam selector under the "State PSC" group.