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<sect1 id="licenses-gfdl-section-4" xreflabel="Copying in quantity">

    <title>Copying in quantity</title>

    <para>If you publish printed copies (or copies in media that
    commonly have printed covers) of the Document, numbering more than
    100, and the Document's license notice requires Cover Texts, you
    must enclose the copies in covers that carry, clearly and legibly,
    all these Cover Texts: Front-Cover Texts on the front cover, and
    Back-Cover Texts on the back cover.  Both covers must also clearly
    and legibly identify you as the publisher of these copies.  The
    front cover must present the full title with all words of the
    title equally prominent and visible.  You may add other material
    on the covers in addition.  Copying with changes limited to the
    covers, as long as they preserve the title of the Document and
    satisfy these conditions, can be treated as verbatim copying in
    other respects.</para>
    
    <para>If the required texts for either cover are too voluminous to
    fit legibly, you should put the first ones listed (as many as fit
    reasonably) on the actual cover, and continue the rest onto
    adjacent pages.</para>
    
    <para>If you publish or distribute Opaque copies of the Document
    numbering more than 100, you must either include a
    machine-readable Transparent copy along with each Opaque copy, or
    state in or with each Opaque copy a computer-network location from
    which the general network-using public has access to download
    using public-standard network protocols a complete Transparent
    copy of the Document, free of added material.  If you use the
    latter option, you must take reasonably prudent steps, when you
    begin distribution of Opaque copies in quantity, to ensure that
    this Transparent copy will remain thus accessible at the stated
    location until at least one year after the last time you
    distribute an Opaque copy (directly or through your agents or
    retailers) of that edition to the public.</para>
    
    <para>It is requested, but not required, that you contact the
    authors of the Document well before redistributing any large
    number of copies, to give them a chance to provide you with an
    updated version of the Document.</para>
    
</sect1>