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
* Aadhaar Biometric Authentication (Fingerprint/Thumb)
* Aadhaar IRIS 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
* If using Biometric Authentication:


1. A supported Biometric Fingerprint Device is required
2. Biometric Fingerprint Device Requirement
A supported Biometric Fingerprint Device is required.As per UIDAI guidelines, the listed L1 biometric fingerprint devices can be found in the official document:🔗 UIDAI Listed Biometric Devices (L1) - PDF

* If using IRIS Authentication:
1. compatible IRIS Scanner is needed

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, Biometric (Fingerprint), and IRIS 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.