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The GNU Free Documentation License 1.1 in DocBook
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Markup by Eric Baudais <baudais@okstate.edu>
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Maintained by the GNOME Documentation Project
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http://developer.gnome.org/projects/gdp
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Last Modified: Nov 16, 2000
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Version 1.1, March 2000
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<year>2000</year><holder>Free Software Foundation, Inc.</holder>
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<legalnotice id="fdl-legalnotice">
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<address>Free Software Foundation, Inc. <street>59 Temple Place,
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Suite 330</street>, <city>Boston</city>, <state>MA</state>
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<postcode>02111-1307</postcode> <country>USA</country></address>
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Everyone is permitted to copy and distribute verbatim copies of this
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license document, but changing it is not allowed.
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<title>GNU Free Documentation License</title>
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<sect1 id="fdl-preamble">
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<title>0. PREAMBLE</title>
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The purpose of this License is to make a manual, textbook, or
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other written document <quote>free</quote> in the sense of
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freedom: to assure everyone the effective freedom to copy and
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redistribute it, with or without modifying it, either
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commercially or noncommercially. Secondarily, this License
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preserves for the author and publisher a way to get credit for
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their work, while not being considered responsible for
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modifications made by others.
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This License is a kind of <quote>copyleft</quote>, which means
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that derivative works of the document must themselves be free in
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the same sense. It complements the GNU General Public License,
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which is a copyleft license designed for free software.
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We have designed this License in order to use it for manuals for
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free software, because free software needs free documentation: a
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free program should come with manuals providing the same
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freedoms that the software does. But this License is not limited
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to software manuals; it can be used for any textual work,
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regardless of subject matter or whether it is published as a
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printed book. We recommend this License principally for works
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whose purpose is instruction or reference.
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<sect1 id="fdl-section1">
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<title>1. APPLICABILITY AND DEFINITIONS</title>
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<para id="fdl-document">
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This License applies to any manual or other work that contains a
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notice placed by the copyright holder saying it can be
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distributed under the terms of this License. The
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<quote>Document</quote>, below, refers to any such manual or
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work. Any member of the public is a licensee, and is addressed
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as <quote>you</quote>.
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<para id="fdl-modified">
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A <quote>Modified Version</quote> of the Document means any work
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containing the Document or a portion of it, either copied
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verbatim, or with modifications and/or translated into another
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<para id="fdl-secondary">
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A <quote>Secondary Section</quote> is a named appendix or a
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front-matter section of the <link
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linkend="fdl-document">Document</link> that deals exclusively
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with the relationship of the publishers or authors of the
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Document to the Document's overall subject (or to related
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matters) and contains nothing that could fall directly within
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that overall subject. (For example, if the Document is in part a
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textbook of mathematics, a Secondary Section may not explain any
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mathematics.) The relationship could be a matter of historical
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connection with the subject or with related matters, or of
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legal, commercial, philosophical, ethical or political position
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<para id="fdl-invariant">
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The <quote>Invariant Sections</quote> are certain <link
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linkend="fdl-secondary"> Secondary Sections</link> whose titles
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are designated, as being those of Invariant Sections, in the
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notice that says that the <link
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linkend="fdl-document">Document</link> is released under this
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<para id="fdl-cover-texts">
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The <quote>Cover Texts</quote> are certain short passages of
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text that are listed, as Front-Cover Texts or Back-Cover Texts,
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in the notice that says that the <link
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linkend="fdl-document">Document</link> is released under this
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<para id="fdl-transparent">
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A <quote>Transparent</quote> copy of the <link
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linkend="fdl-document"> Document</link> means a machine-readable
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copy, represented in a format whose specification is available
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to the general public, whose contents can be viewed and edited
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directly and straightforwardly with generic text editors or (for
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images composed of pixels) generic paint programs or (for
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drawings) some widely available drawing editor, and that is
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suitable for input to text formatters or for automatic
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translation to a variety of formats suitable for input to text
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formatters. A copy made in an otherwise Transparent file format
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whose markup has been designed to thwart or discourage
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subsequent modification by readers is not Transparent. A copy
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that is not <quote>Transparent</quote> is called
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<quote>Opaque</quote>.
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Examples of suitable formats for Transparent copies include
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plain ASCII without markup, Texinfo input format, LaTeX input
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format, SGML or XML using a publicly available DTD, and
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standard-conforming simple HTML designed for human
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modification. Opaque formats include PostScript, PDF,
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proprietary formats that can be read and edited only by
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proprietary word processors, SGML or XML for which the DTD
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and/or processing tools are not generally available, and the
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machine-generated HTML produced by some word processors for
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output purposes only.
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<para id="fdl-title-page">
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The <quote>Title Page</quote> means, for a printed book, the
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title page itself, plus such following pages as are needed to
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hold, legibly, the material this License requires to appear in
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the title page. For works in formats which do not have any title
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page as such, <quote>Title Page</quote> means the text near the
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most prominent appearance of the work's title, preceding the
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beginning of the body of the text.
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<sect1 id="fdl-section2">
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<title>2. VERBATIM COPYING</title>
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You may copy and distribute the <link
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linkend="fdl-document">Document</link> in any medium, either
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commercially or noncommercially, provided that this License, the
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copyright notices, and the license notice saying this License
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applies to the Document are reproduced in all copies, and that
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you add no other conditions whatsoever to those of this
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License. You may not use technical measures to obstruct or
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control the reading or further copying of the copies you make or
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distribute. However, you may accept compensation in exchange for
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copies. If you distribute a large enough number of copies you
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must also follow the conditions in <link
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linkend="fdl-section3">section 3</link>.
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You may also lend copies, under the same conditions stated
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above, and you may publicly display copies.
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<sect1 id="fdl-section3">
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<title>3. COPYING IN QUANTITY</title>
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If you publish printed copies of the <link
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linkend="fdl-document">Document</link> numbering more than 100,
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and the Document's license notice requires <link
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linkend="fdl-cover-texts">Cover Texts</link>, you must enclose
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the copies in covers that carry, clearly and legibly, all these
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Cover Texts: Front-Cover Texts on the front cover, and
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Back-Cover Texts on the back cover. Both covers must also
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clearly and legibly identify you as the publisher of these
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copies. The front cover must present the full title with all
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words of the title equally prominent and visible. You may add
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other material on the covers in addition. Copying with changes
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limited to the covers, as long as they preserve the title of the
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<link linkend="fdl-document">Document</link> and satisfy these
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conditions, can be treated as verbatim copying in other
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If the required texts for either cover are too voluminous to fit
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legibly, you should put the first ones listed (as many as fit
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reasonably) on the actual cover, and continue the rest onto
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If you publish or distribute <link
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linkend="fdl-transparent">Opaque</link> copies of the <link
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linkend="fdl-document">Document</link> numbering more than 100,
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you must either include a machine-readable <link
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linkend="fdl-transparent">Transparent</link> copy along with
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each Opaque copy, or state in or with each Opaque copy a
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publicly-accessible computer-network location containing a
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complete Transparent copy of the Document, free of added
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material, which the general network-using public has access to
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download anonymously at no charge using public-standard network
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protocols. If you use the latter option, you must take
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reasonably prudent steps, when you begin distribution of Opaque
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copies in quantity, to ensure that this Transparent copy will
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remain thus accessible at the stated location until at least one
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year after the last time you distribute an Opaque copy (directly
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or through your agents or retailers) of that edition to the
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It is requested, but not required, that you contact the authors
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of the <link linkend="fdl-document">Document</link> well before
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redistributing any large number of copies, to give them a chance
226
to provide you with an updated version of the Document.
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<sect1 id="fdl-section4">
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<title>4. MODIFICATIONS</title>
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You may copy and distribute a <link
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linkend="fdl-modified">Modified Version</link> of the <link
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linkend="fdl-document">Document</link> under the conditions of
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sections <link linkend="fdl-section2">2</link> and <link
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linkend="fdl-section3">3</link> above, provided that you release
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the Modified Version under precisely this License, with the
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Modified Version filling the role of the Document, thus
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licensing distribution and modification of the Modified Version
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to whoever possesses a copy of it. In addition, you must do
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these things in the Modified Version:
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<itemizedlist mark="opencircle">
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Use in the <link linkend="fdl-title-page">Title
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Page</link> (and on the covers, if any) a title distinct
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from that of the <link
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linkend="fdl-document">Document</link>, and from those of
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previous versions (which should, if there were any, be
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listed in the History section of the Document). You may
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use the same title as a previous version if the original
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publisher of that version gives permission.
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List on the <link linkend="fdl-title-page">Title
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Page</link>, as authors, one or more persons or entities
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responsible for authorship of the modifications in the
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<link linkend="fdl-modified">Modified Version</link>,
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together with at least five of the principal authors of
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the <link linkend="fdl-document">Document</link> (all of
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its principal authors, if it has less than five).
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State on the <link linkend="fdl-title-page">Title
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Page</link> the name of the publisher of the <link
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linkend="fdl-modified">Modified Version</link>, as the
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Preserve all the copyright notices of the <link
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linkend="fdl-document">Document</link>.
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Add an appropriate copyright notice for your modifications
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adjacent to the other copyright notices.
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Include, immediately after the copyright notices, a
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license notice giving the public permission to use the
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<link linkend="fdl-modified">Modified Version</link> under
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the terms of this License, in the form shown in the
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Preserve in that license notice the full lists of <link
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linkend="fdl-invariant"> Invariant Sections</link> and
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required <link linkend="fdl-cover-texts">Cover
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Texts</link> given in the <link
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linkend="fdl-document">Document's</link> license notice.
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Include an unaltered copy of this License.
348
Preserve the section entitled <quote>History</quote>, and
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its title, and add to it an item stating at least the
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title, year, new authors, and publisher of the <link
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linkend="fdl-modified">Modified Version </link>as given on
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the <link linkend="fdl-title-page">Title Page</link>. If
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there is no section entitled <quote>History</quote> in the
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<link linkend="fdl-document">Document</link>, create one
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stating the title, year, authors, and publisher of the
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Document as given on its Title Page, then add an item
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describing the Modified Version as stated in the previous
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Preserve the network location, if any, given in the <link
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linkend="fdl-document">Document</link> for public access
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to a <link linkend="fdl-transparent">Transparent</link>
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copy of the Document, and likewise the network locations
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given in the Document for previous versions it was based
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on. These may be placed in the <quote>History</quote>
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section. You may omit a network location for a work that
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was published at least four years before the Document
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itself, or if the original publisher of the version it
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refers to gives permission.
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In any section entitled <quote>Acknowledgments</quote> or
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<quote>Dedications</quote>, preserve the section's title,
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and preserve in the section all the substance and tone of
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each of the contributor acknowledgments and/or
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dedications given therein.
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Preserve all the <link linkend="fdl-invariant">Invariant
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Sections</link> of the <link
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linkend="fdl-document">Document</link>, unaltered in their
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text and in their titles. Section numbers or the
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equivalent are not considered part of the section titles.
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Delete any section entitled
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<quote>Endorsements</quote>. Such a section may not be
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included in the <link linkend="fdl-modified">Modified
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Do not retitle any existing section as
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<quote>Endorsements</quote> or to conflict in title with
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any <link linkend="fdl-invariant">Invariant
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If the <link linkend="fdl-modified">Modified Version</link>
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includes new front-matter sections or appendices that qualify as
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<link linkend="fdl-secondary">Secondary Sections</link> and
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contain no material copied from the Document, you may at your
437
option designate some or all of these sections as invariant. To
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do this, add their titles to the list of <link
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linkend="fdl-invariant">Invariant Sections</link> in the
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Modified Version's license notice. These titles must be
441
distinct from any other section titles.
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You may add a section entitled <quote>Endorsements</quote>,
446
provided it contains nothing but endorsements of your <link
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linkend="fdl-modified">Modified Version</link> by various
448
parties--for example, statements of peer review or that the text
449
has been approved by an organization as the authoritative
450
definition of a standard.
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You may add a passage of up to five words as a <link
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linkend="fdl-cover-texts">Front-Cover Text</link>, and a passage
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of up to 25 words as a <link
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linkend="fdl-cover-texts">Back-Cover Text</link>, to the end of
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the list of <link linkend="fdl-cover-texts">Cover Texts</link>
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in the <link linkend="fdl-modified">Modified Version</link>.
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Only one passage of Front-Cover Text and one of Back-Cover Text
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may be added by (or through arrangements made by) any one
462
entity. If the <link linkend="fdl-document">Document</link>
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already includes a cover text for the same cover, previously
464
added by you or by arrangement made by the same entity you are
465
acting on behalf of, you may not add another; but you may
466
replace the old one, on explicit permission from the previous
467
publisher that added the old one.
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The author(s) and publisher(s) of the <link
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linkend="fdl-document">Document</link> do not by this License
473
give permission to use their names for publicity for or to
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assert or imply endorsement of any <link
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linkend="fdl-modified">Modified Version </link>.
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<sect1 id="fdl-section5">
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<title>5. COMBINING DOCUMENTS</title>
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You may combine the <link linkend="fdl-document">Document</link>
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with other documents released under this License, under the
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terms defined in <link linkend="fdl-section4">section 4</link>
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above for modified versions, provided that you include in the
486
combination all of the <link linkend="fdl-invariant">Invariant
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Sections</link> of all of the original documents, unmodified,
488
and list them all as Invariant Sections of your combined work in
493
The combined work need only contain one copy of this License,
494
and multiple identical <link linkend="fdl-invariant">Invariant
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Sections</link> may be replaced with a single copy. If there are
496
multiple Invariant Sections with the same name but different
497
contents, make the title of each such section unique by adding
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at the end of it, in parentheses, the name of the original
499
author or publisher of that section if known, or else a unique
500
number. Make the same adjustment to the section titles in the
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list of Invariant Sections in the license notice of the combined
506
In the combination, you must combine any sections entitled
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<quote>History</quote> in the various original documents,
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forming one section entitled <quote>History</quote>; likewise
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combine any sections entitled <quote>Acknowledgments</quote>,
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and any sections entitled <quote>Dedications</quote>. You must
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delete all sections entitled <quote>Endorsements.</quote>
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<sect1 id="fdl-section6">
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<title>6. COLLECTIONS OF DOCUMENTS</title>
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You may make a collection consisting of the <link
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linkend="fdl-document">Document</link> and other documents
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released under this License, and replace the individual copies
521
of this License in the various documents with a single copy that
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is included in the collection, provided that you follow the
523
rules of this License for verbatim copying of each of the
524
documents in all other respects.
528
You may extract a single document from such a collection, and
529
distribute it individually under this License, provided you
530
insert a copy of this License into the extracted document, and
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follow this License in all other respects regarding verbatim
532
copying of that document.
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<sect1 id="fdl-section7">
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<title>7. AGGREGATION WITH INDEPENDENT WORKS</title>
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A compilation of the <link
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linkend="fdl-document">Document</link> or its derivatives with
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other separate and independent documents or works, in or on a
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volume of a storage or distribution medium, does not as a whole
543
count as a <link linkend="fdl-modified">Modified Version</link>
544
of the Document, provided no compilation copyright is claimed
545
for the compilation. Such a compilation is called an
546
<quote>aggregate</quote>, and this License does not apply to the
547
other self-contained works thus compiled with the Document , on
548
account of their being thus compiled, if they are not themselves
549
derivative works of the Document. If the <link
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linkend="fdl-cover-texts">Cover Text</link> requirement of <link
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linkend="fdl-section3">section 3</link> is applicable to these
552
copies of the Document, then if the Document is less than one
553
quarter of the entire aggregate, the Document's Cover Texts may
554
be placed on covers that surround only the Document within the
555
aggregate. Otherwise they must appear on covers around the whole
560
<sect1 id="fdl-section8">
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<title>8. TRANSLATION</title>
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Translation is considered a kind of modification, so you may
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distribute translations of the <link
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linkend="fdl-document">Document</link> under the terms of <link
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linkend="fdl-section4">section 4</link>. Replacing <link
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linkend="fdl-invariant"> Invariant Sections</link> with
568
translations requires special permission from their copyright
569
holders, but you may include translations of some or all
570
Invariant Sections in addition to the original versions of these
571
Invariant Sections. You may include a translation of this
572
License provided that you also include the original English
573
version of this License. In case of a disagreement between the
574
translation and the original English version of this License,
575
the original English version will prevail.
579
<sect1 id="fdl-section9">
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<title>9. TERMINATION</title>
582
You may not copy, modify, sublicense, or distribute the <link
583
linkend="fdl-document">Document</link> except as expressly
584
provided for under this License. Any other attempt to copy,
585
modify, sublicense or distribute the Document is void, and will
586
automatically terminate your rights under this License. However,
587
parties who have received copies, or rights, from you under this
588
License will not have their licenses terminated so long as such
589
parties remain in full compliance.
593
<sect1 id="fdl-section10">
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<title>10. FUTURE REVISIONS OF THIS LICENSE</title>
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The <ulink type="http"
597
url="http://www.gnu.org/fsf/fsf.html">Free Software
598
Foundation</ulink> may publish new, revised versions of the GNU
599
Free Documentation License from time to time. Such new versions
600
will be similar in spirit to the present version, but may differ
601
in detail to address new problems or concerns. See <ulink
603
url="http://www.gnu.org/copyleft">http://www.gnu.org/copyleft/</ulink>.
607
Each version of the License is given a distinguishing version
608
number. If the <link linkend="fdl-document">Document</link>
609
specifies that a particular numbered version of this License
610
<quote>or any later version</quote> applies to it, you have the
611
option of following the terms and conditions either of that
612
specified version or of any later version that has been
613
published (not as a draft) by the Free Software Foundation. If
614
the Document does not specify a version number of this License,
615
you may choose any version ever published (not as a draft) by
616
the Free Software Foundation.
620
<sect1 id="fdl-using">
621
<title>Addendum</title>
623
To use this License in a document you have written, include a copy of
624
the License in the document and put the following copyright and
625
license notices just after the title page:
630
Copyright YEAR YOUR NAME.
633
Permission is granted to copy, distribute and/or modify this
634
document under the terms of the GNU Free Documentation
635
License, Version 1.1 or any later version published by the
636
Free Software Foundation; with the <link
637
linkend="fdl-invariant">Invariant Sections</link> being LIST
638
THEIR TITLES, with the <link
639
linkend="fdl-cover-texts">Front-Cover Texts</link> being LIST,
640
and with the <link linkend="fdl-cover-texts">Back-Cover
641
Texts</link> being LIST. A copy of the license is included in
642
the section entitled <quote>GNU Free Documentation
648
If you have no <link linkend="fdl-invariant">Invariant
649
Sections</link>, write <quote>with no Invariant Sections</quote>
650
instead of saying which ones are invariant. If you have no
651
<link linkend="fdl-cover-texts">Front-Cover Texts</link>, write
652
<quote>no Front-Cover Texts</quote> instead of
653
<quote>Front-Cover Texts being LIST</quote>; likewise for <link
654
linkend="fdl-cover-texts">Back-Cover Texts</link>.
658
If your document contains nontrivial examples of program code,
659
we recommend releasing these examples in parallel under your
660
choice of free software license, such as the <ulink type="http"
661
url="http://www.gnu.org/copyleft/gpl.html"> GNU General Public
662
License</ulink>, to permit their use in free software.