🔖 Railway✅ Updated March 2026🔧 Free Tool on This Page
Railway Group D Photo & Signature Size 2026 —
20–50KB Photo · Min 30KB Signature — Unique Rule
Photo20–50KB
Pixels150×200 px
FormatJPEG only
BackgroundWhite
Signature30–40KB
Sig Pixels140×60 px
Railway Group D has one rule that confuses almost every first-time applicant: the signature must be at least 30KB, not just "under 40KB". Most compression tools target as small as possible — but a Group D signature below 30KB will be rejected with a minimum file size error. This is the opposite of most exams. For the photo: white background, formal wear, JPEG between 20KB and 50KB. RRB publishes Group D notifications through regional boards — Ahmedabad, Bhopal, Chandigarh, Chennai and others. The photo specs are the same across all zones. This page targets 20KB for photo and 35KB for signature.
🔒 100% Private: Your photo is compressed entirely in your browser. No files uploaded to any server. Nothing stored or shared.
⚠️ RRB Group D / ALP / Technician Portal Auto-Rejects If:
Signature under 30KB — Group D has unique minimum 30KB rule, below = auto-rejected
Photo over 50KB or under 20KB — use tool above
Using RRB NTPC signature — NTPC minimum is 10KB, Group D minimum is 30KB
Format is PNG or WebP — only JPEG accepted
Background is dark, grey, or coloured — white only required
⚠️ UNIQUE RULE: Railway Group D / ALP has a minimum 30KB signature requirement — the only major exam with this rule. Signatures below 30KB are auto-rejected. Target 32–35KB for safe upload. Do not use a signature compressed for other exams.
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Railway Group D Photo Size 2026 — Complete Details
The Railway Group D photo minimum size is 150×200 pixels, file size 20KB to 50KB JPEG, white background. Target 20KB for photo. The critical unique rule for Group D is the signature minimum of 30KB — the only major exam in India with this requirement.
✅ Railway Portal Upload Checklist
Signature minimum is 30KB — target 32–35KB for safe upload
Very different from NTPC (which only needs 10KB minimum) — never reuse the same signature file across both NTPC signature
Target 20KB for photo — safe middle of 20–50KB range
White background, black ink on white paper for signature
Same specs for Group D, ALP, Technician, and Group C posts
Group D Signature — Unique 30KB Minimum Rule
The Railway Group D signature range is 30KB to 40KB — minimum 30KB strictly enforced. Signatures below 30KB are auto-rejected. Target 32–35KB. This is completely different from RRB NTPC which only requires minimum 10KB. The Signature tab in the tool above is pre-configured to 33KB specifically for Group D.
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How to Compress RRB Group D / ALP / Technician Photo — 4 Steps
1
Take passport-size photo
White background, good light, no glasses, front-facing.
2
Compress photo to 20KB
Use Photo tab on this page — pre-set to 20KB.
3
For signature — use Signature tab
Pre-set to 33KB for Group D — safely above 30KB minimum.
4
Download and upload to RRB portal
Upload photo (20KB) and signature (33KB) to your RRB zone portal.
RRB Group D / ALP / Technician — Photo Size Comparison
White background required for all railway exams. Fix: Retake against plain white wall
❌ Signature over 40KB
Too large — portal rejects above 40KB. Fix: Tool max is 40KB — slider capped at Group D range
❌ Photo under 20KB
Too small. Fix: Tool never goes under 20KB
❌ Blue ink signature
Black ink on white paper only for railway exams. Fix: Sign with black ballpoint pen
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🔗 Also Appearing for IBPS or Banking Exams?
Railway and banking exam photos look similar but differ in dimension. Railway Group D needs 150×200 px minimum while IBPS needs 200×230 px. More importantly, IBPS has a strict landscape signature requirement (800×300 px) that Railway doesn't — visit the IBPS PO photo size guide for the full IBPS and SBI portal checklist before applying.
Frequently Asked Questions
Based on official requirements as of March 2026. Verify from official notification.
What is Railway Group D photo size 2026?
Railway Group D 2026 requires JPEG photo minimum 150×200 pixels, 20KB to 50KB, white background. Signature 30KB to 40KB — unique minimum 30KB rule.
Why does Railway Group D need minimum 30KB signature?
RRB Group D portals have an automated rule that rejects any signature below 30KB. This is a unique requirement not found in most other exams. Target 32–35KB for safe upload.
Is Group D signature different from RRB NTPC?
Yes. Group D requires 30–40KB minimum (auto-rejects below 30KB). RRB NTPC allows 10–40KB (auto-rejects below 10KB). Do not reuse signature files between these exams.
What is Group D signature size in KB?
Railway Group D signature: 30KB to 40KB JPEG, minimum 140×60 px, black ink on white paper. Target 33KB for safe upload. The Signature tab in the tool above is pre-set to 33KB.
What background for Railway Group D photo?
White background only. Dark, grey, or coloured backgrounds are rejected.
Can I use PNG for Railway Group D photo?
No. Railway portal rejects PNG. Only JPEG/JPG accepted. Tool auto-converts PNG to JPEG.
How do I compress Group D photo free?
Use the free tool on this page — pre-set to 20KB for Group D photo. For signature, use Signature tab (pre-set to 33KB). No sign-up, works on mobile.
Is ALP signature same as Group D?
Yes. RRB ALP and Technician have the same signature requirement as Group D: 30–40KB minimum 30KB.
What happens if my Group D signature is 25KB?
It will be auto-rejected by the portal. You must use the Signature tab on this page which targets 33KB — safely above the 30KB minimum.
What is Railway Group D photo size in pixels?
Railway Group D photo minimum is 150×200 pixels, 20–50KB JPEG, white background. Same for ALP and Technician posts.
⚠️ Disclaimer: Information compiled from official notifications as of March 2026. Requirements may change each exam cycle. Always verify from indianrailways.gov.in before applying.
Compress RRB Group D / ALP / Technician Photo Free — On This Page
20KB JPEG · 30 seconds · No upload to server · Works on mobile