KagazoIndia PKI Verify
RRB NTPC, Group D, ALP & Technician Ready

Railway RRB Photo & Signature Resizer (NTPC, ALP, Group D)

Format your Railway Recruitment Board exam photo (320×240 px landscape, 20–50 KB) and signature (160×80 px, 10–40 KB) to exact RRB portal specifications. Processed locally in your browser with zero server contact.

Bi-Directional Auto-Enhance Engine

Guarantees files strictly meet RRB Railway upload limits. Padded if < 20KB, capped if > 50KB.

Official Portal Standards ReadyUpload your candidate photograph on the left to view verified results and instant download here.
Target Bracket:20 KB – 50 KB
Target Dimensions:3.5cm × 4.5cm
Target DPI:200 DPI (Exam Compliant)
In-Memory Privacy:100% Client-Side RAM
The Railway Landscape 320×240 Format Advantage

Why Standard Portrait Photos Cause Instant Rejection on Railway Portals

The Railway Recruitment Board portal (rrbapply.gov.in) uses a landscape-oriented photo format — 320 pixels wide by 240 pixels tall (4:3 aspect ratio). Almost every other Indian exam board (SSC, UPSC, IBPS) mandates portrait photos. Uploading a portrait photo or stretching it into landscape produces distorted faces that fail validation.

Furthermore, RRB signatures require a unique 160×80 px canvas with a 10–40 KB range. While the 40 KB ceiling is more relaxed than SSC's 20 KB limit, signatures cropped tightly often fall below the 10.0 KB floor. Kagazo handles both the landscape crop and bi-directional padding seamlessly.

320×240 Landscape Lock

Specifically formatted for RRB landscape layout. No squishing or facial distortion.

10–40 KB Signature Window

Pads undersized signatures above 10 KB and compresses large scans below 40 KB.

Running Cursive Protection

Protects against mass rejections caused by BLOCK or capital letter signatures.

Official Railway RRB Upload Specifications

Strict standards enforced across all 21 Railway Recruitment Board zones.

RRB CEN Norms
ParameterRRB Scanned PhotographRRB Scanned Signature
Applicable ExamsRRB NTPC, Group D (Level 1), ALP & Technician, JE, RPF Constable & SIMandatory across all Railway Recruitment Board exams
File Size Range20 KB to 50 KB10 KB to 40 KB
Exact Pixel Dimensions320 × 240 pixels (Landscape 4:3)160 × 80 pixels (2:1 ratio)
File FormatJPG / JPEG onlyJPG / JPEG only
Background & PaperPlain white background, full face frontal viewPlain unruled white paper
Handwriting Style—Running cursive only; NO block/capital letters
Disallowed ItemsCaps, sunglasses, reading spectacles, masks, colored backdropsSignatures in CAPITAL letters, initials only, or pencil

Verification Note: Individual zonal RRB notifications can have slight variations. Always confirm with the active Centralised Employment Notice (CEN) PDF before submission. Also applying for SSC? Use our SSC Photo & Signature Resizer.

How to Format Railway RRB Photo & Signature in 5 Steps

Follow this verified 5-step process for instant recruitment portal compliance:

1

Select RRB Mode

Choose RRB Photo (20–50 KB, 35×45 mm) or RRB Signature (10–40 KB, 50×20 mm).

2

Upload Portrait or Sign

Upload smartphone photo or signature scan from your computer or phone.

3

Align Plain White Background

Ensure neutral white background with straight frontal gaze and ears visible.

4

Calibrate Size & DPI

The engine compresses image streams while embedding true 300 DPI headers.

5

Download Compliant JPEG

Save verified JPEG ready for immediate upload to rrbapply.gov.in.

Common Railway RRB Errors and How Kagazo Fixes Them

Avoid common application mistakes that trigger instant portal rejection:

Error: Dark Background Gradients

Background Color Rejection on RRB Portal

RRB requires plain light white background. Kagazo eliminates room shadows and wall tints.

Error: Signature Under 10 KB

Undersized Signature Rejection

RRB requires signature between 10 KB and 40 KB. Kagazo uses safe padding to maintain compliance.

Error: Caps or Dark Goggles

Headwear Obscuring Facial Biometrics

Railway boards reject photos with hats or dark glasses. Clear frontal portraits are mandatory.

Error: Faint Blue Ink Signatures

Low Contrast Signature Scrutiny Failure

RRB mandates black ink on white paper. Kagazo darkens signature strokes.

Frequently Asked Questions (Railway RRB Photo & Signature)

Clear answers covering RRB NTPC, Group D, ALP, Technician, and RPF application requirements.

What is the exact photo size for RRB NTPC, ALP, and Group D in pixels?
Official Railway Recruitment Board (RRB) guidelines mandate a 320 pixels wide by 240 pixels tall (landscape 4:3) photograph. The file must be in JPG/JPEG format with file size strictly between 20 KB and 50 KB on a pure plain white background.
Is the RRB photo portrait or landscape?
The RRB photograph is strictly LANDSCAPE (320 pixels width x 240 pixels height). Unlike SSC, UPSC, and IBPS which mandate vertical portrait photos, RRB is the only major central board mandating landscape. Submitting a portrait photo (240x320 px) causes automatic portal rejection.
What are the official signature dimensions and file size for Railway exams?
The signature must be 160 pixels wide by 80 pixels tall with file size between 10 KB and 40 KB in JPG/JPEG format. It must be signed in black or dark blue ink on plain white paper in running cursive handwriting.
Why did RRB reject over 500,000 applications in previous recruitment drives?
Major reasons for historical mass rejections by Railway Recruitment Boards include: (1) Signatures signed in CAPITAL / BLOCK letters instead of running cursive handwriting, (2) Submitting vertical portrait photos instead of the required 320x240 px landscape format, (3) Photos with blue, outdoor, or shadowy backgrounds instead of plain white, and (4) Wearing caps, dark goggles, or tilted face profiles.
My RRB signature is 8 KB. Will the portal reject it?
Yes. The rrbapply.gov.in portal enforces a 10.0 KB lower floor. Uploading an 8 KB signature triggers an instant error. Kagazo applies supersampling and JFIF padding to bring undersized signatures safely into the 15–30 KB range.
Does the Railway Recruitment Board require a name or date on the photo?
No. Unlike UPSC or State PSCs, RRB does not mandate printing your name or date of photograph (DOP) on the photo canvas. The photo must be a clean, unobstructed headshot on a white background.
Can I use the same photo for RRB NTPC, Group D, and ALP?
Yes, provided the photograph is recent (taken within the timeframe specified in the relevant CEN notification) and adheres to the 320x240 px landscape dimensions and 20–50 KB range.
Can I wear spectacles in my RRB photo?
No. RRB notifications strictly prohibit candidate photos wearing spectacles, reading glasses, sunglasses, or tinted lenses because glare interferes with facial biometric matching at examination centers.
Which official portal is used for RRB online applications?
Centralized Railway recruitments are processed via rrbapply.gov.in as well as individual zonal RRB websites (RRB Chennai, Mumbai, Kolkata, Allahabad, etc.). The 320x240 px photo and 160x80 px signature standards are uniform across all 21 railway zones.
Does Kagazo store my RRB photo or signature?
No. All resizing, landscape cropping, and Xerox ink enhancement are executed 100% in-browser using HTML5 Canvas and volatile RAM memory. No image data is ever transferred to remote servers.
Recommended Workflow Tools

Related Tools & Complementary Utilities

Candidates and applicants also frequently use these tools for their document preparation.

Browse all 50+ tools
Exam & Recruitment Photos
POPULAR

SSC Photo & Signature Resizer

Photo (20-50KB, 3.5×4.5cm) and Signature (10-20KB, 4.0×2.0cm) with bi-directional padding.

Use Tool
Exam & Recruitment Photos
ERROR DOCTOR

Government Exam Upload Error Doctor & Fixer

Paste your portal upload rejection error or select SSC, UPSC, TNPSC, or IBPS. Kagazo automatically diagnoses file defects and generates a 100% compliant file in 1 click.

Use Tool
Exam & Recruitment Photos
1-CLICK ZIP

SSC 3-in-1 Combo Pack (Photo, Signature & Certificate ZIP)

All-in-one SSC CGL, CHSL, MTS & GD upload bundle. Format Photo (20-50KB), Signature (10-20KB), and Certificate (<300KB) into a single 1-Click ZIP.

Use Tool
Exam & Recruitment Photos
DOP BANNER

UPSC Photo & Signature Resizer

Exact 350×350 to 1000×1000 px sizing with candidate Name & 10-day Date of Photo banner.

Use Tool