Windows Server 2012 is not an officially supported OS but it might work.
For reference each application has a Tech Spec link on its product page. From the Creative Cloud Apps page at https://creative.adobe.com/apps click on the Learn More link to go to the product page and you will see the Tech Spec link in the top menu.
There is a free 30 day trial for the applications. You can try them out on a Windows Server 2012 machine and see if they work to your satisfaction.