@I would like to see 2 things in Tableau 11, as long as there is Mailing Capability.
1. Allow Admin to schedule and send Viz to multiple users/groups from Tableau server.
2. Allow users to subscribe a report in formats like Excel, PDF or even an Image
-->Community Manager update [Ciara Brennan]
Also refer to Duplicate Idea #3768
https://community.tableau.com/ideas/3768 Ability to subscribe via PDF and Excel ( 63 Votes )
Feature available in Tableau 2019.3 beta version
PDF attachment to subscriptions ( Feature 110653 )