The UIDAI site is the official website for the unique identification authority of India. This site comes with a number of features that you should be very familiar with. Mainly, it is about the enrolment process and checking if the identification number is valid or not. You can only view the enrolment number document in PDF. Therefore, you are supposed to check if you have adobe reader or any other reliable pdf reader before you can proceed. There is a link for downloading the adobe reader if you do not have it on your computer or other compatible devices such as tablets and smartphones.
However, downloading the adobe reader and checking whether it is working properly or not would only be appropriate if you have already checked the validity of Aadhaar number. The site has a link for checking the validity of the number. In case the validity is unknown, you will also find a link that can help you to sort out the issue.
To Know more visit http://eaadhaar.uidai.gov.in