 It
complements the <acronym>GNU</acronym> General Public License, which is a
copyleft license designed for free software.

     <p>We have designed this License in order to use it for manuals for free
software, because free software needs free documentation: a free
program should come with manuals providing the same freedoms that the
software does.  But this License is not limited to software manuals;
it can be used for any textual work, regardless of subject matter or
whether it is published as a printed 