File png-support.dtd of Package docbook_3

<!--
    DocBook DTD for getting png support.
    (c) Red Hat, Inc.

 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
-->

<!--
    This DTD should be referenced in your documentation as:

      <!DOCTYPE Article PUBLIC "-//GNOME//DTD DocBook PNG Variant V1.0//EN">

    and remember to update your catalog to reference this file.
-->

<!-- ============================================================= -->
<!--        Modifications to the original DocBook DTD              -->
<!-- ============================================================= -->

<!ENTITY % local.notation.class
                       "| PNG"                                       >
<!NOTATION PNG          SYSTEM "PNG"                                 >

<!-- ============================================================= -->
<!--                    Original DocBook DTD                       -->
<!-- ============================================================= -->

<!ENTITY % DocBookDTD       PUBLIC
"-//Davenport//DTD DocBook V3.0//EN"                                  >

%DocBookDTD;