All content and layouts are stored securely in the vjoon K4 database with full version control. vjoon K4 can store and manage nearly any file type. PDFs, Photos, vector graphics, Microsoft Excel spreadsheets, and Microsoft Word documents can all be managed and versioned within task-based workflows. Desktop users connect to vjoon K4 using a set of Adobe InDesign or Adobe InCopy plugins. Additional browser-based functionality can be added to vjoon K4 to allow non-InCopy or InDesign users to participate in vjoon K4 workflows. Once a user logs in to vjoon K4 they have access to content based on the permissions that user has been granted. When a user accepts a workflow task, the InDesign or InCopy file is transferred to the user’s local machine and is marked on the server as being “checked-out.” This locked status alerts all users of the system that the file is currently being modified and helps to prevent other users from accidentally overwriting a particular file. When a user is done with a task, or needs to work on it later, they check the file back in which transfers the local file back into the vjoon K4 database.