QSign

QSign is a digital e-signature platform that lets your team send documents for legally-valid electronic signature, sign them, and keep a tamper-evident audit trail of who signed what, when, and how.

Three ways to sign:

• e-Signature — capture signer intent and consent, then seal the finished PDF so any later change is detectable.
• Aadhaar eSign — government Aadhaar OTP signing via the NSDL/Protean gateway (IT-Act aligned, no token needed).
• DSC — PKI/X.509 digital signatures from a hardware token, with optional trusted timestamping.

Built for modern teams: reusable templates, a contact book, envelopes for multi-document signing, role-based access, and a complete signing-evidence trail. A white-label REST API is also available for embedding signing into your own product.

Who it's for: legal, finance and HR teams — and any business that needs documents signed quickly and verifiably.

Billing is handled by Microsoft on your Azure invoice — sign in with your Microsoft account after purchase to get started in minutes.