> PandaDoc tracks your docs, let’s you know who has looked at what, when, and then gives you detailed analytics to help you plan your next move.

Aka a service where I as receiver would feel violated from being spied on. It is no one's business when and where I read what and how.

Also, it being cloud-based you never really receive the documents, but you are just enabled to view them if the site is online. Or maybe I am misreading the marketing speak.