To use Adobe software applications such as Acrobat 9 Pro Extended past the 30-day trial period, you must activate them. With a single-user license, you are entitled to install Adobe Acrobat 9 Pro Extended on two computers, a primary computer and a secondary computer. You can deactivate Acrobat 9 Pro Extended on one of the computers and activate it on another at a later point if you desire. Writer Bio
