To activate Adobe Acrobat Pro DC offline, you must have a (perpetual license) . Subscription-based versions (Creative Cloud) require an internet connection for initial activation and periodic validation. Verified Offline Activation Process
Step 1: Install the SoftwareRun the offline installer on your target machine. When prompted to sign in or provide a serial number, look for the option that says "Having trouble connecting to the internet?" or "Offline Activation."
“As a note: I would say copy the request code on a notepad and then use a thumb /flash /pen drive to copy it and the same way get the response code to the offline machine.” Adobe · 8 years ago