Documents are a great way to provide files associated with a project. Users can upload files directly to the document repository of a project. Any attachments on tickets or comments will also appear in the document list. You have full control over which users can create and view documents in JForce.
All details concerning a document are shown on the overview page. If a document is an image file, you will also be able to see a preview without having to download the document. Users can upload new versions of any document, provided they have the appropriate access permissions.
Bottom Line: Documents are a central hub for all files within a project.