We have recently designed CloudFiles as an enhancement over HubSpot documents that lets you track engagement on your files. You can know total analytics, views, downloads, page-by-page views and do ID validation to secure your documents. Moreover, you can do this all from your CRM in the context of deals/company/contacts.
Yes. HubSpot facilitate s that under sales----Document options. From that upload documents & when create mail ,fetch document from Document option available.as soon as contacts options you willc one to know also on which page they spent how much time will also be known