Here are four easy steps helps you install Adobe Reader in your Ubuntu 11.04 box
1. Go to Power -> System Settings
2. Choose System -> Ubuntu Software Center
3. Select menu Edit -> Software Sources
Then choose Other Software tab and click on "Add" button, enter the following line into the APT line and click "Add Source" button to save.:
deb http://archive.canonical.com/ubuntu maverick partner
4. Go back to the Software Center and find Adobe Reader to install

