Upload a signed PDF and get a complete cryptographic report — signer identity, certificate chain, timestamp, tamper detection, and CA trust level.
Aadhaar eSign, DSC, PAdES, PKCS#7 — all supported
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Generated by SigVerify India eSign Checker
Everything citizens, businesses, and developers need to know about legally valid electronic signatures, trusted CAs, and the difference between a scanned signature and a real cryptographic one.
| Feature | Wet Ink | Scanned / Image | Drawn on Screen | OTP / Click-Sign | Aadhaar eSign / DSC |
|---|---|---|---|---|---|
| IT Act 2000 — Valid | ✓ Yes | ✗ No | ✗ No | ⚠ Limited | ✓ Yes |
| Tamper-Evident | ✗ No | ✗ No | ✗ No | ⚠ Partial | ✓ Yes |
| Identity Verified | ⚠ Physical | ✗ No | ✗ No | ⚠ Phone/Email | ✓ Govt. ID |
| Court Admissible | ✓ Yes | ✗ Generally no | ✗ Generally no | ⚠ Case-dependent | ✓ Yes |
| Crypto Verifiable | ✗ No | ✗ No | ✗ No | ✗ No | ✓ Yes |
| CA Backed | ✗ No | ✗ No | ✗ No | ✗ No | ✓ Yes |
Defines digital and electronic signatures using asymmetric cryptography, including Aadhaar-based eSign.
An electronic record authenticated by a valid digital signature has the same legal force as a signed paper document.
In legal proceedings, a valid digital signature is presumed to be that of the subscriber. The other party must disprove it.
Primary issuer for Aadhaar OTP and biometric eSign. Issues short-lived (~30 min) session certificates via C-DAC Sub CA.
India's largest commercial CA. Issues Class 2 and Class 3 DSCs. Empanelled as Aadhaar eSign ASP under UIDAI.
Issues DSCs tied to PAN database. Popular for income tax, ROC/MCA filings. NSDL eSIGN provides Aadhaar-based eSign.
Long-standing CCA-licensed CA. Issues Class 3 certificates for individuals, organizations, and government departments.
Class 3 DSCs including DGFT and Document Signer certs. Widely used for customs, import/export, and corporate filings.