Employees => Document Management. Depending on the confidentiality and nature of the document it can be shared only with individual employees, all employees attached to a department or all the employees in the company.
Documents => My Documents => Company Documents
Employees => Document Management => Document Types
"Notifications: Send Document Expiry Emails"to No if you don't wish to receive document expiry notifications.
Notifications: Copy Document Expiry Emails to Managerto Yes if you want to send all document expiry notifications to respective managers also
Share With Employee option"to NO when you create a new Document Type.