 The GSFDL is a copyleft license for free content, designed by the Free Software Foundation (FSF) for the GNU project.This license is currently only in draft form (published September 26, 2006).The draft is mostly identical to the current Version 2 draft of the GNU Free Documentation License, except it makes no provision for Cover Texts and Invariant Sections; and it includes a new section 0a entitled "Free Manuals are Essential" which contains an ideological statement.