Acrobat DC is offered as a subscription purchase. You can buy Acrobat Pro DC or Acrobat Standard DC through an annual or month-to-month subscription plan. It includes Acrobat Pro or Standard for your desktop, plus Adobe Document Cloud mobile apps and Document Cloud services.
Activation is a required process by which Adobe validates that your software is genuine and being used as allowed by your product license agreement. It is intended to protect both your rights as a consumer and Adobe’s rights as a software developer. Activation also helps confirm that the software you bought is not counterfeit.
Acrobat DC products automatically attempt to activate over the Internet. During activation, no personal information is transmitted. Each single-user license grants rights for Acrobat to be installed on two computers at any given time. See the Adobe software activation page for more information Activate and deactivate Adobe products