IIT OTP vs eSign Digital

Designed for generating one-time passwords (OTP-passwords)

Sign Anything, Anytime, from Anywhere — Securely with Aadhaar. Welcome to eSign.digital, your all-in-one app to legally sign documents using your Aadhaar — no paperwork, no USB tokens, and no office visits. With eSign.digital, you can instantly sign PDF documents from your mobile phone in a few taps. It's simple, safe, and legally valid under the Indian IT Act. This app is powered by Capricorn Identity Services Pvt. Ltd., a licensed Certifying Authority by the Government of India. Key Features Instant Aadhaar eSign: Use your Aadhaar to sign documents instantly with multiple secure authentication methods: * Aadhaar Face Authentication Simple Document Upload: Easily upload PDF files from your device. Select, sign, and save within seconds. Legal Validity Guaranteed: All signatures through eSign.digital are fully valid under Sections 3 & 5 of the Indian Information Technology Act, 2000. Track & Manage Documents: Get real-time status, notifications, and audit trails for all signed documents. Prerequisites To use the eSign.digital app for signing documents, please ensure you have the following: * Your Aadhaar Number * A mobile phone. * If using Face Authentication: 1. The Aadhaar FaceRD application must be installed and properly configured on your mobile device No smart card, USB token, or paper documents required — just your Aadhaar and the necessary device depending on the authentication method you choose. Fast and Paperless: No scanning, printing, or couriering. Go 100% digital and save time and effort. How It Works 1. Download & Register: Open the app and choose your preferred signing mode. 2. Upload Your Document: Select the PDF document you want to sign. 3. Select a Signing Mode: Use Aadhaar Face Authentication to securely sign your documents. 4. Verify & Sign: Complete Aadhaar authentication and place your signature. 5. Download or Share: Save the signed document to your device or send it instantly. Who Should Use eSign.digital? * Individuals: For signing rental agreements, affidavits, job offers, and more. * Students: For admissions, applications, and declarations. * Professionals & Freelancers: Sign contracts, proposals, or invoices. * Enterprises: Streamline employee onboarding, vendor agreements, etc. * Banks & Finance Teams: Speed up KYC, loan forms, and account openings. * Sales Teams: Close deals faster with digital document workflows. Why Choose the Capricorn Customer App? * Legally Binding – Your signature is 100% valid in Indian courts. * Aadhaar-based – No need to create separate IDs. Just use your Aadhaar. * Easy to Use – A clean interface made for everyone — no technical skills required. * Affordable & Accessible – Pay per document. No subscription required. * Safe & Private – We use top-grade encryption and secure Aadhaar authentication.