Re: We successfully installed Adobe Acrobat DC on our users machines with a serialized license, however they are not allowed to use all of the features such as 'send for signature'.

I think you need to customize the installer so that these items are removed from the UI. See the admin guide for an overview and the Wizard guide for details about customizing installs.

You can also use both docs to get the reg keys you can propagate if you don't want to reinstall.

Acrobat-Reader Enterprise Toolkit Home

HTH,

Ben