The LDP stores its documents in the following markup languages:
DocBook XML version 4.2 (preferred), 4.1.2
DocBook SGML version 4.2, 4.1, or 3.x
A new document may be submitted to the LDP in any format. Documents which are not in DocBook or LinuxDoc will be converted by a volunteer. The author is responsible for adding markup to any revisions which are made.