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<sect1 id="zend.pdf.introduction">
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    <title>Introduction</title>

    <para>
        The <classname>Zend_Pdf</classname> component is a <acronym>PDF</acronym> (Portable Document
        Format) manipulation engine. It can load, create, modify and save documents. Thus it can
        help any <acronym>PHP</acronym> application dynamically create <acronym>PDF</acronym>
        documents by modifying existing documents or generating new ones from scratch.
        <classname>Zend_Pdf</classname> offers the following features:

        <itemizedlist>
            <listitem>
                <para>
                    Create a new document or load existing one.

                    <footnote>
                        <para>
                            Loading <acronym>PDF</acronym> V1.4 (Acrobat 5) documents is now
                            supported.
                        </para>
                    </footnote>
                </para>
            </listitem>

            <listitem>
                <para>
                    Retrieve a specified revision of the document.
                </para>
            </listitem>

            <listitem>
                <para>
                    Manipulate pages within a document. Change page order, add new pages, remove
                    pages from a document.
                </para>
            </listitem>

            <listitem>
                <para>
                    Different drawing primitives (lines, rectangles, polygons, circles, ellipses and
                    sectors).
                </para>
            </listitem>

            <listitem>
                <para>
                    Text drawing using any of the 14 standard (built-in) fonts or your own custom
                    TrueType fonts.
                </para>
            </listitem>

            <listitem>
                <para>
                    Rotations.
                </para>
            </listitem>

            <listitem>
                <para>
                    Image drawing.

                    <footnote>
                        <para>
                            JPG, PNG [Up to 8bit per channel+Alpha] and TIFF images are supported.
                        </para>
                    </footnote>
                </para>
            </listitem>

            <listitem>
                <para>
                    Incremental <acronym>PDF</acronym> file update.
                </para>
            </listitem>
        </itemizedlist>
    </para>
</sect1>
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