You can isolate a document in its own window, known as a document window. These windows are convenient for split screen work. For any editable file formats, you can open a document window by double-clicking a document in any view of a main window. Alternately, you can choose Data > Open or Open from the contextual menu to open any document in a document window. For most file types that can't be edited directly in DEVONthink, double-clicking the file will open it in the system default application. For example, double-clicking a Word file will open it in the same application that opens if you had opened the file in the Finder.

See the Documents chapter for a detailed description of the various document types DEVONthink supports.