How to Validate Aadhaar Card Signature?

Aadhaar eSign enables individuals to digitally sign electronic documents using their Aadhaar number and authentication through OTP or biometrics. Validating the digital signature in an e-Aadhaar PDF helps confirm that the document has been digitally signed by UIDAI and has not been altered. 

This guide explains how to validate Aadhaar card signature in mobile and other verification methods.

Key Highlights

• Desktop Validation: The digital signature in an e-Aadhaar PDF can be validated only through Adobe Acrobat Reader on a desktop.
• Mobile Verification: The official Aadhaar App verifies Aadhaar details by scanning the secure QR code on the Aadhaar card or e-Aadhaar.
• PDF Password: The e-Aadhaar PDF password is the first four letters of your name in CAPITAL letters followed by your birth year (YYYY).
• Signature Status: A successful validation changes the signature status from 'Validity Unknown' to 'Signature Valid' in Adobe Acrobat Reader.

What is an Aadhaar Card Signature?

Aadhaar eSign is a legally recognised electronic signature that enables individuals to digitally sign documents using their Aadhaar number and OTP or biometric authentication. 

Every e-Aadhaar PDF issued by UIDAI contains a digital signature that verifies the authenticity and integrity of the document. Validating this signature confirms that the e-Aadhaar has been issued by UIDAI and has not been modified after issuance.

Aadhaar signature verification is important for a lot of official usage, such as opening bank accounts, applying for jobs, and receiving government services. It provides security, ensuring that your document is legally valid and there is a lesser chance of fraud.

How to Verify Aadhaar QR Code on Mobile?

The Aadhaar App allows users to verify the authenticity of an Aadhaar card by scanning its secure QR code. This process verifies the Aadhaar details stored in the QR code and is different from validating the digital signature embedded in an e-Aadhaar PDF.

Step 1: Download the official Aadhaar App from the Google Play Store or Apple App Store.

Step 2: Log in using your registered mobile number and complete the OTP or Face Authentication process.

Step 3: Open the QR Code Scanner available on the app dashboard.

Step 4: Scan the QR code printed on the Aadhaar card or e-Aadhaar.

Step 5: The app will display the verified demographic details stored in the secure QR code.

The displayed information confirms that the QR code is authentic and has been issued by UIDAI. However, this process does not validate the digital signature embedded in an e-Aadhaar PDF.

How to Validate Digital Signature in e-Aadhaar?

The digital signature embedded in an e-Aadhaar PDF can be validated only through a compatible PDF reader such as Adobe Acrobat Reader on a desktop or laptop.

Here is a step-by-step guide about how to validate Aadhaar card signature:

Step 1: Download your Aadhaar PDF from the UIDAI portal and open it in Adobe Acrobat Reader.

Step 2: Click the yellow question mark (‘Validity Unknown’) and select ‘Signature Properties’.

Step 3: Click ‘Show Signer’s Certificate’ > ‘Trust’ > ‘Add to Trusted Certificates’.

Step 4: Check all boxes, click ‘OK’ twice, and return to Signature Properties.

Step 5: Click ‘Validate Signature’ to complete the process.

Once you complete the Aadhaar signature verification, a green tick will appear, confirming the validation of your Aadhaar e-sign and the completion of the document signature. 

Note: The password to open the e-Aadhaar PDF consists of the first four letters of your name in CAPITAL letters followed by your year of birth (YYYY).

Benefits of Validating Aadhaar E-Signature

Aadhaar eSign and digital signature validation help establish the authenticity and integrity of electronic documents issued by UIDAI. While the digital signature in an e-Aadhaar PDF can be validated using Adobe Acrobat Reader on a desktop, the Aadhaar App allows users to verify Aadhaar details through secure QR code scanning on mobile devices.

Related Articles:
1. How To Check Aadhaar e-KYC Online And Offline?
2. Aadhaar Card Status – Online & Status Enquiry
3. How To Change Address In Aadhar Card Online?
4. How to Check Aadhaar Validity Online?
5. What is EID Number in Aadhaar Card?