mirror of
https://github.com/sigmasternchen/php-doc-en
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1634a88641
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330340 c90b9560-bf6c-de11-be94-00142212c4b1
78 lines
2.9 KiB
XML
78 lines
2.9 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<book xml:id="book.fdf" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<title>Forms Data Format</title>
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<titleabbrev>FDF</titleabbrev>
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<!-- {{{ preface -->
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<preface xml:id="intro.fdf">
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&reftitle.intro;
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<simpara>
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Forms Data Format (FDF) is a format for handling
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forms within PDF documents. You should read the documentation at
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<link xlink:href="&spec.pdf.fdf;">&spec.pdf.fdf;</link>
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for more information on what FDF is and how it is used in general.
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</simpara>
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<simpara>
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The general idea of FDF is similar to HTML forms. The difference is
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basically the format how data is transmitted to the server when the submit
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button is pressed (this is actually the Form Data Format) and the format
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of the form itself (which is the Portable Document Format, PDF).
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Processing the FDF data is one of the features provided by the fdf
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functions. But there is more. One may as well take an existing PDF form
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and populated the input fields with data without modifying the form
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itself. In such a case one would create a FDF document
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(<function>fdf_create</function>) set the values of each input field
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(<function>fdf_set_value</function>) and associate it with a PDF form
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(<function>fdf_set_file</function>). Finally it has to be sent to the
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browser with MimeType <literal>application/vnd.fdf</literal>. The Acrobat
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reader plugin of your browser recognizes the MimeType, reads the
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associated PDF form and fills in the data from the FDF document.
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</simpara>
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<simpara>
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If you look at an FDF-document with a text editor you will find a
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catalogue object with the name <literal>FDF</literal>. Such an object may
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contain a number of entries like <literal>Fields</literal>,
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<literal>F</literal>, <literal>Status</literal> etc..
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The most commonly used entries are <literal>Fields</literal> which points
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to a list of input fields, and <literal>F</literal> which contains the
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filename of the PDF-document this data belongs to. Those entries are
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referred to in the FDF documentation as /F-Key or /Status-Key.
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Modifying this entries
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is done by functions like <function>fdf_set_file</function> and
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<function>fdf_set_status</function>. Fields are modified with
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<function>fdf_set_value</function>, <function>fdf_set_opt</function> etc..
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</simpara>
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</preface>
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<!-- }}} -->
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&reference.fdf.setup;
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&reference.fdf.constants;
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&reference.fdf.examples;
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&reference.fdf.reference;
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</book>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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