A system (5) for producing a document is disclosed. A repository (16) stores documents in a marked-up form according to one or more mark-up schemas. The schemas are adapted to make explicit structural information contained a document. A document format store (22) stores formats that are user selectable. A document production processor (29, 31, 32) generates a user-requested formatted document from the respective marked-up form using a user-selected said format that retains said implicit structural information.