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✍️ Signature Fix Guide
Signature Upload Failed — Fix for All Exam Portals
Getting a “signature upload failed”, “file size exceeds limit”, or “invalid signature format” error on SSC, UPSC, IBPS, SBI, or Railway portals? This guide explains every cause and provides the exact fix for each portal.
Signature Requirements by Portal
| Portal / Exam | Format | Size | Dimensions |
|---|---|---|---|
| SSC CGL / CHSL / MTS / CPO | JPEG | Max 10KB | 140×60 px |
| UPSC CSE / CAPF / CDS | JPEG | Max 20KB | 140×60 px |
| IBPS PO / Clerk / SO | JPEG | 10KB–20KB | 140×60 px |
| SBI PO / SBI Clerk | JPEG | 10KB–20KB | 140×60 px |
| RRB NTPC / Group D / ALP | JPEG | 10KB–40KB | 140×60 px |
| NEET UG / JEE Main (NTA) | JPEG | 4KB–30KB | 140×60 px |
Common Errors and Fixes
"Signature file size exceeds limit"Compress your signature to the target KB using our Signature Resizer (10KB for SSC, 20KB for IBPS/UPSC)
Fix now →"Unsupported file format for signature"Your file is PNG or HEIC — convert to JPEG first, then compress
Fix now →"Signature is blank/not visible"The signature scan is too light — re-sign with darker ink and scan again with better lighting
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Signature Resizers
Signature Resizer
Resize your scanned signature to 10KB or 20KB for SSC, UPSC, Railway, and bank exam forms.
Resize Signature to 20KB (UPSC/Bank)
Compress your scanned signature to exactly 20KB for UPSC, bank, and railway form submissions.
PNG to JPG Converter
Convert PNG images to JPG format to reduce file size while keeping great quality.
Frequently Asked Questions
Common questions about using this tool — answered.
SSC accepts signatures between 1KB and 10KB, JPEG format only, dimensions 140×60 pixels minimum.
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