Sign in to Adobe using your workstation login. If you are a new user skip the first two steps.
If you are currently signed into Adobe
Steps
1. Sign out by going to the top right corner and click the blue pie.
2. Press Sign Out.
Sign in to Adobe Acrobat DC for Pro License
Steps
1. Sign in by pressing Sign In on the top right of Adobe Acrobat.
2. Enter your e-mail address and press Continue.
3. Choose Company or School Account
4. If you are signed into Office 365 you will automatically be signed into Adobe. If not you will be presented the Office 365 Login screen where you will enter your workstation password (and enter your Multi-Factor Authentication code if MFA is enabled on your account).