Why does my government PDF show a yellow question mark?

Indian government PDFs are digitally signed using certificates from NIC, eMudhra, or other CCA India licensed authorities. Adobe Acrobat and most PDF viewers don't include India's Root Certifying Authority (RCAI) in their default trusted certificate store. So even though the signature is completely valid and legally recognised under the Information Technology Act 2000, your PDF viewer shows a yellow question mark because it cannot automatically verify the issuer. Kagazo checks your PDF against the actual CCA India trust hierarchy and gives you a copy with a permanent green tick visible on any device.

Is my document safe? Do you store my PDF?

Your PDF is processed entirely in memory during verification. We never write your file to disk, never store it on our servers, and never share it with any third party. The file is deleted from memory immediately after verification is complete. You can also verify this by checking our open source backend code.

Which documents does Kagazo support?

Kagazo supports any PDF digitally signed under India's CCA certificate hierarchy. This includes e-Aadhaar, PAN card, DigiLocker documents, ITR-V, Form 16, and all state government certificates from Tamil Nadu e-District, AP and Telangana MeeSeva, Karnataka Nadakacheri and eJanma, Kerala Sevana portal, and more.

My Aadhaar PDF is password protected. Will it work?

Yes. Enter your Aadhaar password (first four letters of your name in capital letters followed by your birth year, for example RAMA1995) in the password field that appears after you upload your e-Aadhaar PDF. We decrypt it in memory, verify the signature, and return a verified copy.

What is the difference between "Signature Valid" and "Signature Unknown"?

Signature Valid means the document is genuinely issued by the government authority and has not been modified. Signature Unknown means your PDF viewer cannot verify the certificate chain — this is a viewer configuration issue, not a problem with your document. Signature Invalid means the document may have been tampered with or re-saved after signing.

Does this work on mobile?

Yes. Kagazo is fully mobile responsive and works on any Android or iOS browser. No app installation required. Simply open kagazo.in on your phone browser, upload your PDF and verify instantly.

RRB NTPC, Group D, ALP, Technician & RPF Ready

Railway RRB Photo & Signature Resizer Online

Calibrate photos to exact Railway Recruitment Board standards: Photo (20–50 KB, 320×240 px, plain white background) and Signature (10–40 KB, 160×80 px). Guaranteed zero facial distortion.

Bi-Directional Auto-Enhance Engine

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

Upload Candidate Photograph

Drag & drop your scanned image or smartphone capture. Auto-enhances and strictly formats for official portal compliance.

JPG, JPEG, PNG, WEBP (Up to 25MB)

Official Railway RRB Upload Specifications

Enforced strictly by the Railway Recruitment Board online registration system.

RRB Rules

Document	Allowed Size	Dimensions	Non-Negotiable Guidelines
Passport Photograph	20 KB to 50 KB	240 × 320 pixels (or 320×240)	Pure plain white background, frontal face, no glare
Candidate Signature	10 KB to 40 KB	160 × 80 pixels	Running handwriting only (Capital letters disqualified)

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Frequently Asked Questions (Railway RRB Resizer)

Clear guidance for candidates applying for Railway NTPC, Group D, and ALP recruitment.

What are the official photo and signature dimensions for Railway RRB exams?

According to official Railway Recruitment Board (RRB) notifications (NTPC, Group D, ALP, Technician, and RPF): Photograph must be 320 × 240 pixels (or 240 × 320 px) with file size strictly between 20 KB and 50 KB in JPG/JPEG format on a pure plain white background. Signature must have dimensions of 160 × 80 pixels with file size strictly between 10 KB and 40 KB in black ink on white paper.

Why do so many railway applications get rejected every year?

In past RRB recruitments, over 500,000 candidate forms were rejected due to: (1) Background not being plain white (e.g. blue wall, outdoor backdrop, shadows), (2) Signatures written in CAPITAL / BLOCK letters instead of running handwriting, (3) Selfie photos or photos wearing caps/sunglasses, and (4) Incorrect pixel dimensions (not 320x240 or 160x80).

Does Kagazo ensure my RRB signature is in running handwriting?

Kagazo preserves your genuine running handwriting strokes and applies our Xerox ink boost to darken faint ballpoint pen ink. Remember: never sign in block/capital letters when signing for Railway applications.

Is this RRB Resizer tool free with no watermark?

Yes, 100% free forever for all railway aspirants and cyber cafe operators. Kagazo never stamps watermarks, never requires payment or signups, and processes images in volatile RAM memory.