A computer system, computer implemented method and computer program product for editing virtual documents are discussed. The computer system includes a storage component configured to store a plurality of fragments associated with a virtual document that has a logical structure where each fragment is stored separately from the other fragments. Further, a processing component of the system is configured to assemble the virtual document by retrieving the plurality of associated fragments and ordering the plurality of associated fragments according to the logical structure. An editor component of the system is configured to present a visualization of the virtual document to a user for editing and to receive editing commands from the user wherein a specific editing command is configured to modify a specific fragment of the virtual document in the storage component.