This is a constant source of confusion for people, so we thought we'd try to lay this out succinctly:
Adobe: The company behind all of these software products
Acrobat: The (paid) software that allows you to edit & create PDFs
Acrobat Reader: The (free) software that allows you to read and fill in PDFs (created by somebody with the paid Acrobat software)
Creative Suite: The (paid) software that has diferent package options that include various combinations of Acrobat, Photoshop, InDesign, Premiere (among others)
We install Acrobat Reader on all computers we manage by default - this lets you read and fill in existing PDFs.
If you need to purchase software to edit/create PDFs, Pinnacle offers a competing product called FoxIt that we think works better and is cheaper ($10/month vs Adobe's $15/month or more). If you need more more than just Acrobat, and subscribe to the Creative Suite, we recommend that you bundle Acrobat in there instead of using FoxIt, since those applications are all intended to work together with Adobe's cloud services.