Adobe offers a free trial version of Acrobat Pro DC, which can be used for a limited time. Here's how to install it:

2. How to Install Adobe Acrobat Pro DC with a Legal Free Trial

Adobe will require you to provide a credit card number to start the trial, and they will begin charging you automatically after 7 days. To avoid charges, you must cancel before the trial period ends.

If you have purchased a valid, legal license key or redemption code from an authorized reseller, follow these steps to install and activate your software safely:

Double-click the downloaded .dmg file to mount the Acrobat installer volume.