How to share a PDF file in LAN without copy,move,edit & delete permissions?

Can any one help me by suggesting a tool or process with which we can share PDFs and Documents in LAN, for which copy, move and delete options should not be available.

My requirement is, I shall share a PDF or Document to all our employees. All they have to do is just open and view the PDF but nothing more than that. They must have restrictions to copy, delete, edit and delete permissions.

Please help.!