What is e-Aadhaar ? keyboard_arrow_down e-Aadhaar is a password protected electronic copy of Aadhaar , digitally signed by UIDAI. The e-Aadhaar PDF password is required to access your digital Aadhaar card. To open the e-Aadhaar PDF file, enter the first four letters of your name in CAPS followed by your birth year. Downloading your Aadhaar online gives you a secure, password -protected PDF, known as e-Aadhaar . But many users get stuck at the password prompt. This quick guide explains what the e-Aadhaar password is, how to open your Aadhaar PDF, and what to do if it doesn’t work so that you can access your document hassle-free. What is an e-Aadhaar Card? The password of your e -Aadhaar will be the first four letters of your name and year of your birth. Hence, the password format is easy as it ensures that you never forget your password .