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RBI Assistant — Thumb Guidelines 2026–27

Fix Your Fingerprint Issue for GOVT ExamsHere's the 240 × 240 px Rule — and the Free Fix.

Bank exam portals reject fingerprint photos automatically. The fix is simple: exactly 240 × 240 px · JPG · 20–50 KB. Our free AI tool handles it in seconds — or set custom dimensions for any exam.

📅 Mar 2026⏱ 5 min read🛠 Free tool inside✅ All bank exams

Free Tool

Fix Your Fingerprint — Custom Size & Dimensions

Upload any fingerprint photo. Set your target dimensions and file size below, or pick a quick preset for your exam.

Before & After Processing

Raw fingerprint photo on paper — rejected by RBI portal
✗ RAW — Rejected
~2 MB · 1500×2000 pxWrong size & format
Fingerprint auto-cropped to 240×240px — accepted by RBI portal
✓ Processed — Accepted
~32 KB · 240×240 pxJPG · Ready to upload
Free · No signup · Instant

Fingerprint Auto-Crop & Resize Tool

Upload photo → AI crops fingerprint → custom size JPG → Ready to submit

Output Settings
px
px
KB
KB

Drag & drop your fingerprint photo

or click to browse · JPG, PNG, HEIC · Max 10 MB

Size: 10–20 KBDim: 140×60 pxFmt: JPG
Your image is processed securely and deleted immediately — never stored or shared.

Specifications

Complete RBI Fingerprint Image Requirements 2025–26

Every requirement must be met simultaneously. One deviation causes an immediate rejection.

File Size20 KB – 50 KB
Dimensions240 × 240 px
File FormatJPG / JPEG
Ink ColourBlue or Black
PaperPlain White A4
FingerLeft Thumb (LTI)
BackgroundWhite / Off-white
Ridge ClarityAll ridges visible
EditingNo filters allowed
OrientationUpright, full print
Photo AgeRecent impression
Colour ModeGreyscale / Colour OK

* Always verify against the official notification PDF for your specific exam cycle.

Step-by-Step Guide

How to Take a Perfect Fingerprint for Online Forms

No special equipment needed. Use standard office ink and your phone:

  1. 01
    Get a stamp pad with blue or black ink

    Use a standard office stamp pad. Avoid red or coloured inks — they may not be accepted by automated scanners at exam centres.

  2. 02
    Press your left thumb firmly on the pad

    Roll gently left to right to get an even coat of ink across the entire fingertip.

  3. 03
    Roll the impression onto clean white A4 paper

    Press and roll gently to capture the full ridge pattern. Avoid smearing. Only use plain white paper.

  4. 04
    Let the ink dry completely (30–60 seconds)

    Wet ink photographs blurry. The impression should be sharp, dark, and fully dry before photographing.

  5. 05
    Photograph from directly above in natural light

    Place paper flat on a table. Hold camera directly above and parallel to the paper. Avoid flash — use window daylight.

  6. 06
    Upload here — AI handles the rest in seconds

    Our AI auto-crops the fingerprint, resizes to your chosen dimensions, and compresses to your target KB range. No signup, done in under 5 seconds.

Common Mistakes

What Gets Fingerprints Rejected — and What Passes

Common Rejections
  • Wrong file size (above 50KB or below 20KB)
  • Wrong dimensions (not 240×240px)
  • PNG, BMP, TIFF or PDF instead of JPG
  • Fingerprint too light (insufficient ink)
  • Smudged or smeared impression
  • Too much white space around fingerprint
  • Flash glare washing out ridge details
  • Photo taken at an angle
  • Right thumb instead of left thumb
  • Edited, filtered, or AI-enhanced image
Requirements Met
  • Left thumb impression in blue or black ink
  • All ridges clearly visible and sharp
  • JPG format, 240×240px, 20–50KB
  • Full fingerprint captured (tip to base)
  • White or off-white paper background
  • Photo taken directly from above
  • Even natural light, no flash glare
  • Ink fully dry before photographing
  • No filters or post-processing applied
  • Fresh, recent impression

Quick Reference

Fingerprint Requirements Across Major Indian Exams

Exam / BoardDimensionsFile SizeFormatFinger
RBI Assistant / Grade B240×240 px20–50 KBJPGLeft Thumb
IBPS PO / MT240×240 px20–50 KBJPGLeft Thumb
IBPS Clerk240×240 px20–50 KBJPGLeft Thumb
IBPS RRB Officer / OA240×240 px20–50 KBJPGLeft Thumb
SBI PO / MT240×240 px20–50 KBJPGLeft Thumb
SBI Clerk (JA / JAA)240×240 px20–50 KBJPGLeft Thumb
SSC CGL / CHSL / MTS240×240 px20–50 KBJPGLeft Thumb
RRB NTPC / Group D / ALP240×240 px20–50 KBJPGLeft Thumb
UPSC CSE / NDA / CDS240×240 px20–50 KBJPGLeft Thumb
NTA — CUET / JEE / NEET240×240 px20–50 KBJPGLeft Thumb
NABARD / SEBI / LIC AAO240×240 px20–50 KBJPGLeft Thumb
State PSC (most boards)240×240 px20–50 KBJPGLeft Thumb

* Always check the official notification for your specific exam cycle.

Don't Let a Fingerprint Error Reject Your Application

Free tool · under 10 seconds · no account · image deleted immediately

Fix My Fingerprint — Free

Before You Submit

Final Checklist — Tick Every Box Before Uploading

All the best for your exam!Years of preparation deserve a clean, error-free application. A 10-second fix means one less thing to worry about.

FAQ

Frequently Asked Questions

These portals run automated checks verifying exact dimensions (240×240px), file format (JPG), and file size (20–50KB). A raw phone photo typically fails all three. Our tool fixes all three in one step.