We want to deploy Adobe Acrobat Reader DC via software distribution. What do we need to take into account from a licensing perspective?

Adobe Acrobat Reader DC is free and available for software distribution. However, if you want to deploy this software in an organizational environment, you are required to sign a distribution license agreement with Adobe. Use the link from the source reference to apply for such license agreement.

Source: Official Adobe volume distribution website (https://acrobat.adobe.com/us/en/acrobat/pdf-reader/volume-distribution.html), retrieved 2018-02-01