A content delivery is another interesting feature of Salesforce CRM Content. It allows content files to be shared for online viewing (such as sharing with colleagues or customers) in a web-optimized version using an encrypted URL that can be safely shared. Here, web-optimized simply means that the files are automatically optimized by Salesforce in order to be viewed directly on the browser without any further configuration required on the administrator's part.
To enable this feature, jump to Setup | Content Deliveries and Public Links, which leads to the following configuration page:
The first flag enables the content delivery feature, while the other two allow for the creation of public links to be shared with/without password protection by internal users...