Thumb Impression Resizer & Compressor (10 KB – 50 KB)
Square 1:1 ratio (240×240 px / 3.0×3.0 cm) with high-contrast ridgeline enhancement for SSC, IBPS, RRB, and NTA portals. Applicable for IBPS PO/Clerk/RRB, Railway RRB, SSC Exams, NTA NEET / JEE Main, Central & State PSC Portals.
Start with your image
JPG, PNG, WebP and browser-supported images · up to 15 MB
Clear left-hand thumb impression on unruled white sheet with blue/black stamp pad ink. • Ink: Black or Blue Ink
Choose Image or Drag & Drop Here
Supports JPG, PNG and WebP images up to 15 MB • 240 × 240 px (10–50 KB)
Real-Time Thumb Impression Preview (240 × 240 px)Live Sync
Simulated Thumb Impression output view with high-contrast ink sync.
📋 Government Recruitment Bodies (SSC, IBPS, RRB, NTA) Official Dimension & Upload Standards
| Specification Parameter | Mandatory Portal Value | Verification Rule |
|---|---|---|
| Pixel Width & Height | 240 × 240 px | Standard aspect ratio 1:1 Square (240×240 px) |
| Centimeter Physical Size | 3 cm × 3 cm | Based on 200 DPI scanning resolution |
| File Size Bounds | 10 KB to 50 KB | Recommended target ~20 KB |
| Mandatory Ink Requirement | Blue or Black Stamp Pad Ink | Unruled white paper (no notebook lines) |
| Supported File Formats | JPG / JPEG | Baseline progressive JPEG without EXIF bloat |
🛡️ 4 Rules to Avoid Signature Rejection for Government Recruitment Bodies (SSC, IBPS, RRB, NTA)
- 1 Take impression of your LEFT THUMB unless specifically requested otherwise in the notification.
- 2 Gently dab your thumb on a stamp pad (do not press too hard to prevent ink pooling and smudged ridges).
- 3 Press firmly once on unruled white paper and lift straight up without sliding.
- 4 Set target size slider between 10 KB and 20 KB (for SSC/RRB) or 20 KB and 50 KB (for IBPS/NTA).
❓ Frequently Asked Questions (Government Recruitment Bodies (SSC, IBPS, RRB, NTA))
Which thumb impression is required for IBPS and government exams? ▼
Indian government recruitment portals almost universally mandate the candidate’s Left Thumb Impression (LTI). Only if the left thumb is missing may the right thumb be used (with appropriate notification).
What is the standard dimension for thumb impression upload? ▼
The standard dimension is a 1:1 square ratio: 3.0 cm × 3.0 cm (or 240 × 240 pixels), with a file size between 10 KB and 20 KB or 10 KB and 50 KB depending on the specific exam.
How to fix smudged thumb impressions? ▼
Clean your thumb with soap and water, let it dry completely, dab lightly on the stamp pad, and press gently onto clean white paper. Use the contrast enhancement slider on SignResize to highlight ridge detail.
📘 Government Recruitment Bodies (SSC, IBPS, RRB, NTA) Preparation & Upload Guides
All Guides →IBPS PO & Clerk 2026 Master Upload Guide: Exact Photo, Signature, Thumb Impression & Declaration Rules
Comprehensive formatting rules for all 4 mandatory IBPS uploads: photograph (20-50KB), running signature (10-20KB), left thumb impression (20-50KB), and handwritten declaration (50-100KB) with step-by-step navigation.
IBPS PO 2026: Top 10 FAQs on Eligibility, Handwritten Declaration, Left Thumb & Cutoffs
Authoritative candidate handbook for IBPS PO 2026: exact handwritten declaration text, black ink rules, left thumb impression guidelines, sectional cutoff strategy, and 80:20 final merit ratio.