<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>