Errors4 min readUpdated: 2026-02-17
Signature Not Accepted on Exam Portal – Complete Fix Guide
Fix 'signature not accepted' error on SSC, IBPS, UPSC, RRB portals. Size, format, and quality fixes.
drawWhy Your Signature Is Not Accepted
Signature rejection is one of the most common upload issues. The reasons range from file size to ink color to paper quality. This guide covers every possible cause and fix.
healingCommon Causes & Fixes
| Problem | Fix |
|---|---|
| File too large (>20KB) | Compress with Signature Validator |
| Blue ink used | Re-sign with black ink |
| Ruled paper visible | Use plain white paper |
| Signature too small | Sign larger, then crop |
| PNG format | Convert to JPG |
| Too much whitespace | Crop tightly around signature |
buildStep-by-Step Fix
1
Re-sign
Black ink, plain white paper, sign large and clear
2
Photograph
Good lighting, straight angle, no shadows
3
Crop
Tight crop around signature only
4
Validate
Use our Signature Validator
Fix Signature Now
Validate and compress your signature
buildFix Signature NowhelpFrequently Asked Questions
Why is my signature not accepted?expand_more
Most common causes: wrong format (PNG), file too large (>20KB), blue ink, or ruled paper visible.
calendar_month2026 Exam Photo Guides
Check official photo & signature requirements for upcoming exams: