About ViViD eSigner & ViViD App Studio
Empowering modern businesses with next-generation cryptographic digital signing, hardware security, and enterprise software solutions.
ViViD App Studio
Architecting high-performance digital products, web platforms, and mobile engineering solutions.
ViViD App Studio Official Portal
Explore our portfolio of high-assurance software products, enterprise cloud engineering, cryptographic systems, and custom web applications.
Business Mission & ViViD eSigner Platform
ViViD eSigner (hosted at https://esign.vividapp.in) is a flagship product by ViViD App Studio. It enables professionals, legal teams, and business enterprises to digitally sign, seal, and verify PDF documents with legal-grade cryptographic assurance.
Connects directly to Apple Keychain on macOS via Touch ID and our Chrome Extension, ensuring private keys never leave local hardware.
Instantly issue self-signed X.509 certificates (PKCS#12) for immediate PDF signing without needing external hardware tokens.
All visual signatures and byte-range cryptographic signatures follow ETSI CAdES/PAdES specifications verifiable globally.
For detailed Google OAuth disclosures and data use policies, visit our dedicated Google OAuth Information Page.
Business & Legal Disclaimers
1. Cryptographic Key Control
Private signing keys reside exclusively under the user's control (either in Apple Keychain or local certificate stores). ViViD App Studio holds no master recovery keys.
2. Legal Compliance
Digital signatures generated by ViViD eSigner adhere to ETSI CAdES/PAdES specifications. Users should verify local statutory e-signature requirements (e.g. ESIGN Act, eIDAS, IT Act 2000) for specific legal transactions.
3. Trademarks & Brand Ownership
Adobe, Apple, macOS, Google, and related brand names are registered trademarks of their respective owners. ViViD eSigner is an independent application engineered by ViViD App Studio.