Embodiments are directed to a local, paperless document sharing, editing, and marking system which allows users connected to a local network to share, view, edit, mark, and save documents without needing to download them from an internet-based cloud server. A router is used to create a secure, local network to which all participants connect. A user selects documents from a drive connected to the router and shares those documents with other attendees, allowing the attendees to edit, save, and share the documents, mark the documents as exhibits to a legal proceeding, save the documents to a drive, and/or email the documents.