Signature Resizer
Resize your scanned signature to 20KB or 50KB with the perfect 3:1 ratio for any government portal.
Private client-side processing
Signature Size for SSC, UPSC, Banking Exams (2026 Guide)
Uploading a signature to government portals like UPSC, SSC, or IBPS can be frustrating. Most candidates face rejection because the signature is either too blurry, the wrong aspect ratio, or exceeds the 20KB limit. Our tool is specifically tuned to maintain the 3:1 rectangular ratio required by major Indian recruitment boards.
Why Your Signature Gets Rejected
- 1. Wrong Aspect Ratio: Uploading a square scan when a 4x2 cm rectangle is required.
- 2. Background Noise: Scanning on ruled paper or having shadows in the photo.
- 3. Low Contrast: Blue ink on white paper often lacks the punch needed for digital verification.
- 4. File Size: Exceeding the strict 10KB-20KB limit.
How to Fix Blurry Signature
- Use Black Ink: Always use a black gel or ballpoint pen for maximum contrast.
- Direct Lighting: Take the photo near a window to avoid smartphone shadows.
- Increase Contrast: Our tool automatically boosts the "Whites" and "Blacks" to ensure a clean scan.
- Crop Tight: Leave minimal white space around the actual signature.
Detailed Requirements by Exam Board
SSC Signature Requirements
The signature must be between 10KB to 20KB. The resolution should be 4.0 cm (width) x 2.0 cm (height). SSC portals are very strict about the horizontal orientation.
UPSC Signature Size
UPSC accepts files from 20KB to 300KB. The dimensions should be 3.5 cm x 1.5 cm. They prefer signatures in JPG format with high clarity.
Banking (IBPS/SBI)
Requires a signature of 140 x 60 pixels and the file size must be between 10KB to 20KB. Use our tool to set these exact pixels.
NTA (NEET/JEE)
Signature file size should be 4KB to 30KB. They recommend a white background with no shadows.
3 Steps for a Perfect Signature Scan
Plain White Paper
Always use unruled white paper. Lines can confuse verification software.
Black Ink
Most portals prefer black ink as it provides the highest contrast for digital scans.
Direct Light
Avoid shadows while taking a photo of your signature with your smartphone.
Frequently Asked Questions
Can I resize signature to 10kb?
Yes! Our tool allows you to target any specific KB limit. Just select the image and our algorithm will find the best quality for 10KB.
Is the tool free for all Indian exams?
Yes, OptiKit is 100% free for everyone, from UPSC aspirants to students applying for local college admissions.