📋 RPF Guide

RPF SI & Constable Photo & Signature Size 2026: Complete Guide

Written by the SarkariKagaz Team · Updated January 2026 · 5 min read · Verified against official RRB/RPF notification pattern
Quick answer

RPF SI/Constable Photo: 35mm × 45mm, JPEG, max 100KB, white or light blue background. Signature: 40mm × 20mm, JPEG, max 50KB. Use our free resizer tool to get the correct size instantly.

About RPF Recruitment

The Railway Protection Force (RPF) is the security wing of Indian Railways, responsible for the protection of railway property, passenger areas, and passengers. RPF Sub-Inspector (SI) and Constable recruitment is conducted through the RRB (Railway Recruitment Board) portal, and follows a spec sheet very similar to the one used for RRB Group D.

Because RPF recruitment runs through the same underlying RRB application infrastructure, candidates who have previously applied for RRB Group D or RRB NTPC will find the upload process and validation rules familiar.

RPF SI & Constable Photo Specifications 2026

Here are the complete specifications for the RPF SI and Constable 2026 photograph:

Parameter Required Value Status
Photograph Type Passport size, recent Required
Dimensions 35mm × 45mm (width × height) Exact
File Format JPEG / JPG only Required
Maximum File Size 100 KB Strict
Background Plain white or light blue Required
Photo Age Recent (taken within 3 months) Required
Face Coverage 80% of the frame Guideline
Glasses Not recommended Avoid

RPF Signature Specifications 2026

Along with your photograph, you must upload a scanned signature that meets its own separate requirements:

Parameter Required Value
Dimensions 40mm × 20mm (width × height)
File Format JPEG / JPG only
Maximum File Size 50 KB
Ink Colour Black or dark blue on white paper
Background Plain white paper
Content Candidate's signature only

Resize your RPF photo now — free

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How to Take the Perfect RPF Photo

Do's

Don'ts

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Common mistake that causes upload errors

Candidates who apply for both RPF and RRB Group D in the same recruitment cycle sometimes accidentally upload the wrong exam's saved photo file — since both use near-identical dimensions, the mistake often isn't noticed until after submission. Always double-check the filename and preset in SarkariKagaz.pro before final submission to make sure you're uploading the file meant for this specific application.

How to Resize Your Photo to RPF Specifications

The easiest and fastest way to resize your photo to the exact RPF specifications is to use SarkariKagaz.pro:

  1. Go to sarkarikagaz.pro and search for "RPF" in the search box
  2. Select "RPF SI/Constable Photo" from the suggestions — the tool auto-loads the exact specifications
  3. Upload your photo by clicking the upload area or dragging and dropping
  4. Use the Crop tool to adjust the framing if needed
  5. Check the Form Readiness panel on the left — all indicators should be green
  6. Click "Download Photo" — the file is automatically compressed to under 100KB

The entire process takes under 60 seconds, works on any phone or computer, and your photo never leaves your device.

What Pixel Dimensions Should the RPF Photo Be?

The RPF notification specifies the dimensions in millimetres (35mm × 45mm), but photo portals work in pixels. The equivalent pixel dimensions depend on the resolution (DPI) used:

Resolution Pixel Width Pixel Height
96 DPI (standard screen) 132 px 170 px
150 DPI (medium print) 207 px 266 px
300 DPI (high quality print) 413 px 531 px

Our tool uses 96 DPI by default, which is standard for web uploads. SarkariKagaz.pro automatically outputs the correct pixel dimensions for the RPF preset, so you never need to calculate this yourself.

RPF Recruitment 2026 — Other Important Notes

Disclaimer

Exam specifications may change with each new notification. Always cross-check with the latest official RPF notification on rpf.indianrailways.gov.in or the official RRB site before submitting your application. SarkariKagaz.pro is not affiliated with the Railway Protection Force or the Railway Recruitment Board.

Frequently Asked Questions

RPF SI and Constable recruitment requires a passport-size photo of 35mm × 45mm in JPEG format, maximum 100KB, on a white or light blue background.
The signature must be 40mm × 20mm in JPEG format, maximum 50KB, in black or dark blue ink on plain white paper.
Yes, RPF SI and Constable exams are conducted through the Railway Recruitment Board (RRB) system, using a photo specification similar to RRB Group D.
If the dimensions and file size match, yes — but always verify against each specific notification since requirements can be updated independently.
No. All processing happens 100% in your browser and is never uploaded.