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.

IIT GOAPS Portal Ready • Aspect Ratio Locked

GATE & JAM Photo & Signature Resizer (GOAPS)

Calibrate engineering & science exam documents to strict IIT GOAPS standards. Guarantees signature aspect ratio strictly within the mandatory 3.15 to 3.95 range.

Bi-Directional Auto-Enhance Engine

Guarantees files strictly meet IIT GATE GOAPS upload limits. Padded if < 5KB, capped if > 100KB.

Upload Candidate Signature

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 IIT GOAPS Upload Specifications

Strict mathematical parameters enforced by the Indian Institute of Technology.

IIT Standards

Document	Allowed File Size	Aspect Ratio Rule	Key Guidelines
Passport Photograph	5 KB to 200 KB	0.66 to 0.89	White background, 60–70% face coverage, both ears visible
Candidate Signature	5 KB to 100 KB	3.15 to 3.95 (Strict)	Black or dark blue ink, running hand (Capital letters prohibited)

Understanding the IIT GOAPS 3.15–3.95 Signature Rule

Most online image compressors resize signatures to a square (1:1) or standard 2:1 rectangle. When uploaded to the GOAPS portal, the automated validator divides the pixel width by the pixel height:

Aspect Ratio = Pixel Width ÷ Pixel Height → Must be between 3.15 and 3.95

Kagazo sets your canvas to exactly 532 × 150 pixels (532 ÷ 150 = 3.55), perfectly centered in the permissible window, ensuring 100% first-time portal acceptance.

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Frequently Asked Questions (GATE GOAPS Resizer)

Guidance for engineering & science graduates filling out GATE & JAM registration.

Why does IIT GOAPS show the error: "Aspect ratio of signature not between 3.15 and 3.95"?

The IIT GATE Online Application Processing System (GOAPS) runs an automated mathematical validation on signature dimensions: Width divided by Height must strictly fall between 3.15 and 3.95. If you upload a square or tall signature (e.g. 2:1 ratio), GOAPS automatically blocks the upload. Kagazo fixes this by centering your signature on a calibrated 3.55:1 canvas, guaranteeing zero rejection.

What are the official photo requirements for GATE & JAM?

Photograph must be between 5 KB and 200 KB in JPEG/JPG format. The aspect ratio must be between 0.66 and 0.89 (standard passport ratio). Candidate face must cover 60% to 70% of the image area on a clean white or very light background. Both ears must be clearly visible with no caps or tinted spectacles.

What ink color is permitted for the GATE signature?

Signatures must be signed in black or dark blue ink within a rectangular box on clean white paper. Kagazo includes our Xerox ink boost filter to sharpen blue and black pen strokes while removing grey shadows.

Is this GATE GOAPS Resizer 100% free with no watermark?

Yes, Kagazo is completely free forever. No watermarks, no signups, and your images are processed purely in volatile RAM memory without saving to server disks.