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.

Zero Lined Paper Rejections

Black Ink Signature Extractor & Contrast Enhancer

Automatically eliminates notebook ruled lines, converts faint or blue ballpoint ink to dense official India Black ink, whitens paper background to pure `#FFFFFF`, and auto-crops to exact SSC, UPSC, and IBPS limits.

100% In-Memory Privacy: Your handwritten signature is processed strictly in volatile RAM memory and purged immediately upon download. Zero server persistence.

Upload Signature Photo or Phone Scan

Works even on lined notebook paper, faint blue ink, or shadowed camera photos. Auto-converts to dense black ink with pure white background.

Choose Signature Image

Frequently Asked Questions

Q:Why do SSC and UPSC portals reject signatures on lined paper?

Recruitment portals use automated optical character recognition (OCR) and high-speed signature verification algorithms during exam hall biometric checks. Horizontal notebook lines intersect with letters and cause automatic scanning failures.

Q:Can I upload a signature written with a blue ballpoint pen?

Yes! Our engine mathematically isolates the blue and violet ink frequencies and remaps them to dense, official India Black ink (#141414) while preserving your natural pen pressure variations.

Q:What are the exact signature dimensions for SSC CGL and UPSC CSE?

SSC requires 140 × 60 pixels strictly between 10KB and 20KB in JPEG format. UPSC requires a square 350 × 350 pixels between 20KB and 50KB. Our presets automatically apply these exact specifications.

Q:Is my handwritten signature stored on Kagazo servers?

Never. Kagazo processes all signatures strictly inside temporary RAM memory. Your signature is instantly wiped upon download. Zero images are saved to disk or databases.

Portal Specification Rules

SSC CGL / CHSL / MTS

140 × 60 px • 10 KB to 20 KB • Black Ink

UPSC Civil Services

350 × 350 px • 20 KB to 50 KB • Pure White BG

IBPS PO & Clerk

140 × 60 px • 10 KB to 20 KB • No Capital Letters

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