VIRTUALIZED DEPLOYMENTS — Enterprise Administration Guide
Licensinghttp://www.adobe.com/devnet-docs/acrobatetk/tools/AdminGuide/v_overview.html#licensing
Adobe requires that organizations have a valid Acrobat software license for every user that has access to Acrobat on a server. Note the 10.x licenses can only be used for 10.x products, 11.x licenses can only be used for 11.x products, and so on. For more information, see http://www.adobe.com/legal/licenses-terms.html.