Seersign

SeerSign — India's First Offline Fake Document Detector

India faces one of the world's highest volumes of cyber fraud — fake offer letters, forged court notices, fabricated bank statements. They look real. They sound real. They steal real money. SeerSign fights back.

Drop any document. Get the truth in seconds. Runs locally on your device. Zero data collection. Ever.

🔍 16-LAYER FORENSIC ENGINE

SeerSign doesn't just scan — it interrogates. Every document passes through 16 independent analysis layers:

✔ Layer 1: Font Forensics — Detects mismatched or suspicious fonts. Matches against known company fonts (Infosys, TCS, Wipro, HCL and more).
✔ Layer 2: Metadata Deep Scan — Checks creation tool, author fields, timestamps, and filename patterns.
✔ Layer 3: Seal & Stamp Analysis — Detects SPECIMEN watermarks, missing official seals, and stamp anomalies.
✔ Layer 4: Layout Pattern Match — Validates headers, letterheads, signature blocks, and structural consistency.
✔ Layer 5: Language Analysis — Catches scam phrases, grammar red flags, informal language, urgency tactics, and payment demands.
✔ Layer 6: Number Verification — Validates PAN, Aadhaar (Verhoeff checksum), GSTIN (full check digit), IFSC (60+ bank prefixes), and CIN numbers. All offline.
✔ Layer 7: Image Forensics — Pixel-level noise analysis, edge detection, color boundary checks, and compression artifact scanning.
✔ Layer 8: Error Level Analysis (ELA) — Re-compresses the image and generates a heatmap showing exactly WHERE a document was edited. Three viewing modes.
✔ Layer 9: Copy-Move Detection — Block-matching algorithm that finds cloned or duplicated regions within a document.
✔ Layer 10: AI Content Detection — Statistical analysis to detect ChatGPT/Gemini-generated text patterns.
✔ Layer 11: QR/Barcode Validation — Scans embedded QR codes, checks for payment QR scams, and validates DigiLocker references.
✔ Layer 12: Indian Document Deep Validation — Specialized checks for Aadhaar, PAN, Voter ID, and Driving Licence formats.
✔ Layer 13: Financial Math Verification — Verifies bank statement arithmetic, catches balance mismatches and suspicious round-number patterns.
✔ Layer 14: WhatsApp Forward Detection (NEW) — Detects documents forwarded via messaging apps — the #1 vector for fake document distribution in India. Flags mass-forwarding scam language.
✔ Layer 15: Known Fake Template Database (NEW) — Matches documents against a curated database of fake templates circulating across India. Catches mass-produced scams instantly.
✔ Layer 16: Genuine Template Comparison (NEW) — Compares document structure against known-genuine templates. Confirms required elements are present, flagging documents that look legitimate but don't match real formats.

📄 WHAT IT CATCHES

✔ Fake offer letters from Infosys, TCS, Wipro, HCL (font mismatch, missing CIN, wrong tools)
✔ Forged court notices and fake FIR documents
✔ Fabricated bank statements with math errors
✔ Fake government circulars and notifications
✔ Fraudulent education certificates (with UGC fake university database)
✔ AI-generated document text (ChatGPT/Gemini patterns)
✔ WhatsApp-forwarded scam documents
✔ Fake Aadhaar and PAN cards (checksum validation)
✔ Forged property documents and sale deeds
✔ Fake tax documents and Form 16

🌐 11 INDIAN LANGUAGES

Full OCR support for English, Hindi, Tamil, Telugu, Kannada, Malayalam, Marathi, Bengali, Gujarati, Punjabi, and Urdu. Plus bilingual combinations (English + Hindi, English + Tamil, etc.).

🔒 PRIVACY FIRST

SeerSign runs entirely in your browser. No servers. No uploads. No tracking. No accounts. No data collection. Your documents never leave your device.

📋 HOW TO USE

1. Click the SeerSign icon in your toolbar
2. Drop a document (PDF, PNG, JPG, WEBP) or paste text
3. Select OCR language if needed
4. Get instant forensic results with red flags, positive indicators, and a confidence score
5. Export a full forensic report with one click

You can also right-click any image or selected text on any webpage to scan it instantly.

🇮🇳 BUILT FOR INDIA

SeerSign was built specifically for the Indian document ecosystem. It understands Indian company formats, government document structures, Aadhaar/PAN/GSTIN validation algorithms, IFSC bank codes, UGC-recognized universities, and DigiLocker references.

Part of the Seerror Privacy Suite — India's Digital RAW.
Built for humans. Against the machine.

Free. Offline. Yours.