Google Git
Sign in
apache / xmlgraphics-website / 4ce07896280b37b790f3ebbf67003e9883cea534 / . / output / fop / dev / design / index.html
blob: 6dff2e6b26f88ec11f6d75fb6a9016f103f10e57 [file] [log] [blame]
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta property="og:image" content="http://www.apache.org/images/asf_logo.gif" />
<!--
<link rel="stylesheet" type="text/css" media="screen" href="http://www.apache.org/css/style.css">
-->
<link rel="stylesheet" type="text/css" media="screen" href="https://www.apache.org/css/code.css">
<link href="/css/profile.css" rel="stylesheet" type="text/css" />
<link href="/css/xmlgraphics.css" rel="stylesheet" type="text/css" />
<link href="/css/print.css" rel="stylesheet" type="text/css" media="print" />
<script src="https://code.jquery.com/jquery.min.js"></script>
<script type="text/javascript" src="/js/jquery.stoc.js"></script>
<script>
$(document).ready(function(){
$('ul#navigation a').each(function() {
if (this.href === window.location.href)
{ $(this). attr('id', 'forefront');}
});
$('ul#navigation a#forefront').each(function() {
});
})
$(function(){
$("#items").stoc({ search: "#content", stocTitle: "<h3>Page Contents</h3>" });
});
</script>
<style>
.highlight {color: red;}
</style>
</head>
<body>
<div id="banner">&nbsp;
</div>
<div id="navigation">
<style type="text/css">
/* The following code is added by mdx_elementid.py
It was originally lifted from http://subversion.apache.org/style/site.css */
/*
* Hide class="elementid-permalink", except when an enclosing heading
* has the :hover property.
*/
.headerlink, .elementid-permalink {
visibility: hidden;
}
h2:hover > .headerlink, h3:hover > .headerlink, h1:hover > .headerlink, h6:hover > .headerlink, h4:hover > .headerlink, h5:hover > .headerlink, dt:hover > .elementid-permalink { visibility: visible }</style>
<p><a href="/"><img alt="Apache XML Graphics Project Logo" src="/images/apache-xml-graphics.gif" title="Apache XML Graphics Project" /></a></p>
<h1 id="apache-fop">Apache&trade; FOP<a class="headerlink" href="#apache-fop" title="Permanent link">&para;</a></h1>
<ul>
<li><a href="/fop/">FOP Home</a></li>
<li><a href="/fop/download.html">Download</a></li>
<li><a href="/fop/quickstartguide.html">Quick Start Guide</a></li>
<li><a href="/fop/compliance.html">Compliance</a></li>
<li><a href="/fop/gethelp.html">Getting Help</a></li>
<li><a href="/fop/faq.html">FAQs</a></li>
<li><a href="https://cwiki.apache.org/confluence/display/XMLGRAPHICSFOP">FOP Wiki</a></li>
<li><a href="/fop/maillist.html">Mailing Lists</a></li>
<li><a href="/fop/license.html">License</a></li>
<li>
<h2 id="resources">Resources<a class="headerlink" href="#resources" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/fo.html">XSL-FO</a></li>
<li><a href="/fop/examples.html">Examples</a></li>
<li><a href="/fop/bugs.html">Bugs</a></li>
<li><a href="https://cwiki.apache.org/confluence/display/XMLGRAPHICSFOP/FrontPage">Wiki</a></li>
<li><a href="/fop/resources.html">Other</a></li>
</ul>
</li>
<li>
<h2 id="project">Project<a class="headerlink" href="#project" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/news.html">News</a></li>
<li><a href="/fop/team.html">Who We Are</a></li>
<li><a href="/fop/status.html">Status</a></li>
<li><a href="/fop/knownissues.html">Known Issues</a></li>
<li><a href="/fop/changes.html">Changes</a></li>
</ul>
</li>
<li>
<h2 id="versions">Versions<a class="headerlink" href="#versions" title="Permanent link">&para;</a></h2>
<ul>
<li>
<h2 id="fop-trunk-dev">FOP Trunk (dev)<a class="headerlink" href="#fop-trunk-dev" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/trunk/">Overview</a></li>
<li><a href="/fop/trunk/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop">Using Apache&trade; FOP<a class="headerlink" href="#using-apache-fop" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/trunk/compiling.html">Build</a></li>
<li><a href="/fop/trunk/configuration.html">Configure</a></li>
<li><a href="/fop/trunk/running.html">Run</a></li>
<li><a href="/fop/trunk/embedding.html">Embed</a></li>
<li><a href="/fop/trunk/servlets.html">Servlets</a></li>
<li><a href="/fop/trunk/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features">Features<a class="headerlink" href="#features" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/trunk/accessibility.html">Accessibility</a></li>
<li><a href="/fop/trunk/complexscripts.html">Complex Scripts</a></li>
<li><a href="/fop/trunk/events.html">Events</a></li>
<li><a href="/fop/trunk/extensions.html">Extensions</a></li>
<li><a href="/fop/trunk/fonts.html">Fonts</a></li>
<li><a href="/fop/trunk/graphics.html">Graphics</a></li>
<li><a href="/fop/trunk/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/trunk/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/trunk/metadata.html">Metadata</a></li>
<li><a href="/fop/trunk/output.html">Output Targets</a></li>
<li><a href="/fop/trunk/pdfa.html">PDF/A</a></li>
<li><a href="/fop/trunk/pdfx.html">PDF/X</a></li>
<li><a href="/fop/trunk/pdfencryption.html">PDF Encryption</a></li>
<li><a href="/fop/fop-pdf-images.html">PDF Images</a></li>
<li><a href="/fop/trunk/whitespacemanagement.html">Whitespace Management</a></li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-25">FOP 2.5<a class="headerlink" href="#fop-25" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/2.5/">FOP 2.5 Overview</a></li>
<li><a href="/fop/2.5/releaseNotes_2.5.html">Release Notes</a></li>
<li><a href="/fop/2.5/changes_2.5.html">Changes (2.5)</a></li>
<li><a href="/fop/2.5/knownissues_overview.html">Known Issues</a></li>
<li><a href="/fop/2.5/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop-25">Using Apache FOP 2.5<a class="headerlink" href="#using-apache-fop-25" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.5/compiling.html">Build</a></li>
<li><a href="/fop/2.5/configuration.html">Configure</a></li>
<li><a href="/fop/2.5/running.html">Run</a></li>
<li><a href="/fop/2.5/embedding.html">Embed</a></li>
<li><a href="/fop/2.5/servlets.html">Servlets</a></li>
<li><a href="/fop/2.5/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features_1">Features<a class="headerlink" href="#features_1" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.5/accessibility.html">Accessibility</a></li>
<li><a href="/fop/2.5/complexscripts.html">Complex Scripts</a></li>
<li><a href="/fop/2.5/events.html">Events</a></li>
<li><a href="/fop/2.5/extensions.html">Extensions</a></li>
<li><a href="/fop/2.5/fonts.html">Fonts</a></li>
<li><a href="/fop/2.5/graphics.html">Graphics</a></li>
<li><a href="/fop/2.5/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/2.5/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/2.5/metadata.html">Metadata</a></li>
<li><a href="/fop/2.5/output.html">Output Targets</a></li>
<li><a href="/fop/2.5/pdfa.html">PDF/A</a></li>
<li><a href="/fop/2.5/pdfx.html">PDF/X</a></li>
<li><a href="/fop/2.5/pdfencryption.html">PDF Encryption</a></li>
<li><a href="/fop/fop-pdf-images.html">PDF Images</a></li>
<li><a href="/fop/2.5/whitespacemanagement.html">Whitespace Management</a> </li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-24">FOP 2.4<a class="headerlink" href="#fop-24" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/2.4/">FOP 2.4 Overview</a></li>
<li><a href="/fop/2.4/releaseNotes_2.4.html">Release Notes</a></li>
<li><a href="/fop/2.4/changes_2.4.html">Changes (2.4)</a></li>
<li><a href="/fop/2.4/knownissues_overview.html">Known Issues</a></li>
<li><a href="/fop/2.4/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop-24">Using Apache FOP 2.4<a class="headerlink" href="#using-apache-fop-24" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.4/compiling.html">Build</a></li>
<li><a href="/fop/2.4/configuration.html">Configure</a></li>
<li><a href="/fop/2.4/running.html">Run</a></li>
<li><a href="/fop/2.4/embedding.html">Embed</a></li>
<li><a href="/fop/2.4/servlets.html">Servlets</a></li>
<li><a href="/fop/2.4/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features_2">Features<a class="headerlink" href="#features_2" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.4/accessibility.html">Accessibility</a></li>
<li><a href="/fop/2.4/complexscripts.html">Complex Scripts</a></li>
<li><a href="/fop/2.4/events.html">Events</a></li>
<li><a href="/fop/2.4/extensions.html">Extensions</a></li>
<li><a href="/fop/2.4/fonts.html">Fonts</a></li>
<li><a href="/fop/2.4/graphics.html">Graphics</a></li>
<li><a href="/fop/2.4/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/2.4/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/2.4/metadata.html">Metadata</a></li>
<li><a href="/fop/2.4/output.html">Output Targets</a></li>
<li><a href="/fop/2.4/pdfa.html">PDF/A</a></li>
<li><a href="/fop/2.4/pdfx.html">PDF/X</a></li>
<li><a href="/fop/2.4/pdfencryption.html">PDF Encryption</a></li>
<li><a href="/fop/fop-pdf-images.html">PDF Images</a></li>
<li><a href="/fop/2.4/whitespacemanagement.html">Whitespace Management</a> </li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-23">FOP 2.3<a class="headerlink" href="#fop-23" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/2.3/">FOP 2.3 Overview</a></li>
<li><a href="/fop/2.3/releaseNotes_2.3.html">Release Notes</a></li>
<li><a href="/fop/2.3/changes_2.3.html">Changes (2.3)</a></li>
<li><a href="/fop/2.3/knownissues_overview.html">Known Issues</a></li>
<li><a href="/fop/2.3/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop-23">Using Apache FOP 2.3<a class="headerlink" href="#using-apache-fop-23" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.3/compiling.html">Build</a></li>
<li><a href="/fop/2.3/configuration.html">Configure</a></li>
<li><a href="/fop/2.3/running.html">Run</a></li>
<li><a href="/fop/2.3/embedding.html">Embed</a></li>
<li><a href="/fop/2.3/servlets.html">Servlets</a></li>
<li><a href="/fop/2.3/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features_3">Features<a class="headerlink" href="#features_3" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.3/accessibility.html">Accessibility</a></li>
<li><a href="/fop/2.3/complexscripts.html">Complex Scripts</a></li>
<li><a href="/fop/2.3/events.html">Events</a></li>
<li><a href="/fop/2.3/extensions.html">Extensions</a></li>
<li><a href="/fop/2.3/fonts.html">Fonts</a></li>
<li><a href="/fop/2.3/graphics.html">Graphics</a></li>
<li><a href="/fop/2.3/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/2.3/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/2.3/metadata.html">Metadata</a></li>
<li><a href="/fop/2.3/output.html">Output Targets</a></li>
<li><a href="/fop/2.3/pdfa.html">PDF/A</a></li>
<li><a href="/fop/2.3/pdfx.html">PDF/X</a></li>
<li><a href="/fop/2.3/pdfencryption.html">PDF Encryption</a></li>
<li><a href="/fop/fop-pdf-images.html">PDF Images</a></li>
<li><a href="/fop/2.3/whitespacemanagement.html">Whitespace Management</a> </li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-22">FOP 2.2<a class="headerlink" href="#fop-22" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/2.2/">FOP 2.2 Overview</a></li>
<li><a href="/fop/2.2/releaseNotes_2.2.html">Release Notes</a></li>
<li><a href="/fop/2.2/changes_2.2.html">Changes (2.2)</a></li>
<li><a href="/fop/2.2/knownissues_overview.html">Known Issues</a></li>
<li><a href="/fop/2.2/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop-22">Using Apache FOP 2.2<a class="headerlink" href="#using-apache-fop-22" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.2/compiling.html">Build</a></li>
<li><a href="/fop/2.2/configuration.html">Configure</a></li>
<li><a href="/fop/2.2/running.html">Run</a></li>
<li><a href="/fop/2.2/embedding.html">Embed</a></li>
<li><a href="/fop/2.2/servlets.html">Servlets</a></li>
<li><a href="/fop/2.2/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features_4">Features<a class="headerlink" href="#features_4" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.2/accessibility.html">Accessibility</a></li>
<li><a href="/fop/2.2/complexscripts.html">Complex Scripts</a></li>
<li><a href="/fop/2.2/events.html">Events</a></li>
<li><a href="/fop/2.2/extensions.html">Extensions</a></li>
<li><a href="/fop/2.2/fonts.html">Fonts</a></li>
<li><a href="/fop/2.2/graphics.html">Graphics</a></li>
<li><a href="/fop/2.2/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/2.2/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/2.2/metadata.html">Metadata</a></li>
<li><a href="/fop/2.2/output.html">Output Targets</a></li>
<li><a href="/fop/2.2/pdfa.html">PDF/A</a></li>
<li><a href="/fop/2.2/pdfx.html">PDF/X</a></li>
<li><a href="/fop/2.2/pdfencryption.html">PDF Encryption</a></li>
<li><a href="/fop/fop-pdf-images.html">PDF Images</a></li>
<li><a href="/fop/2.2/whitespacemanagement.html">Whitespace Management</a></li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-21">FOP 2.1<a class="headerlink" href="#fop-21" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/2.1/">FOP 2.1 Overview</a></li>
<li><a href="/fop/2.1/releaseNotes_2.1.html">Release Notes</a></li>
<li><a href="/fop/2.1/changes_2.1.html">Changes (2.1)</a></li>
<li><a href="/fop/2.1/knownissues_overview.html">Known Issues</a></li>
<li><a href="/fop/2.1/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop-21">Using Apache FOP 2.1<a class="headerlink" href="#using-apache-fop-21" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.1/compiling.html">Build</a></li>
<li><a href="/fop/2.1/configuration.html">Configure</a></li>
<li><a href="/fop/2.1/running.html">Run</a></li>
<li><a href="/fop/2.1/embedding.html">Embed</a></li>
<li><a href="/fop/2.1/servlets.html">Servlets</a></li>
<li><a href="/fop/2.1/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features_5">Features<a class="headerlink" href="#features_5" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.1/accessibility.html">Accessibility</a></li>
<li><a href="/fop/2.1/complexscripts.html">Complex Scripts</a></li>
<li><a href="/fop/2.1/events.html">Events</a></li>
<li><a href="/fop/2.1/extensions.html">Extensions</a></li>
<li><a href="/fop/2.1/fonts.html">Fonts</a></li>
<li><a href="/fop/2.1/graphics.html">Graphics</a></li>
<li><a href="/fop/2.1/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/2.1/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/2.1/metadata.html">Metadata</a></li>
<li><a href="/fop/2.1/output.html">Output Targets</a></li>
<li><a href="/fop/2.1/pdfa.html">PDF/A</a></li>
<li><a href="/fop/2.1/pdfx.html">PDF/X</a></li>
<li><a href="/fop/2.1/pdfencryption.html">PDF Encryption</a></li>
<li><a href="/fop/fop-pdf-images.html">PDF Images</a></li>
<li><a href="/fop/2.1/whitespacemanagement.html">Whitespace Management</a></li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-20">FOP 2.0<a class="headerlink" href="#fop-20" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/2.0/">FOP 2.0 Overview</a></li>
<li><a href="/fop/2.0/releaseNotes_2.0.html">Release Notes</a></li>
<li><a href="/fop/2.0/changes_2.0.html">Changes (2.0)</a></li>
<li><a href="/fop/2.0/knownissues_overview.html">Known Issues</a></li>
<li><a href="/fop/2.0/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop-20">Using Apache FOP 2.0<a class="headerlink" href="#using-apache-fop-20" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.0/compiling.html">Build</a></li>
<li><a href="/fop/2.0/configuration.html">Configure</a></li>
<li><a href="/fop/2.0/running.html">Run</a></li>
<li><a href="/fop/2.0/embedding.html">Embed</a></li>
<li><a href="/fop/2.0/servlets.html">Servlets</a></li>
<li><a href="/fop/2.0/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features_6">Features<a class="headerlink" href="#features_6" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/2.0/accessibility.html">Accessibility</a></li>
<li><a href="/fop/2.0/complexscripts.html">Complex Scripts</a></li>
<li><a href="/fop/2.0/events.html">Events</a></li>
<li><a href="/fop/2.0/extensions.html">Extensions</a></li>
<li><a href="/fop/2.0/fonts.html">Fonts</a></li>
<li><a href="/fop/2.0/graphics.html">Graphics</a></li>
<li><a href="/fop/2.0/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/2.0/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/2.0/metadata.html">Metadata</a></li>
<li><a href="/fop/2.0/output.html">Output Targets</a></li>
<li><a href="/fop/2.0/pdfa.html">PDF/A</a></li>
<li><a href="/fop/2.0/pdfx.html">PDF/X</a></li>
<li><a href="/fop/2.0/pdfencryption.html">PDF Encryption</a></li>
<li><a href="/fop/fop-pdf-images.html">PDF Images</a></li>
<li><a href="/fop/2.0/whitespacemanagement.html">Whitespace Management</a></li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-11">FOP 1.1<a class="headerlink" href="#fop-11" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/1.1/">FOP 1.1 Overview</a></li>
<li><a href="/fop/1.1/releaseNotes_1.1.html">Release Notes</a></li>
<li><a href="/fop/1.1/changes_1.1.html">Changes (1.1)</a></li>
<li><a href="/fop/1.1/knownissues_overview.html">Known Issues</a></li>
<li><a href="/fop/1.1/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop-11">Using Apache FOP 1.1<a class="headerlink" href="#using-apache-fop-11" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/1.1/compiling.html">Build</a></li>
<li><a href="/fop/1.1/configuration.html">Configure</a></li>
<li><a href="/fop/1.1/running.html">Run</a></li>
<li><a href="/fop/1.1/embedding.html">Embed</a></li>
<li><a href="/fop/1.1/servlets.html">Servlets</a></li>
<li><a href="/fop/1.1/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features_7">Features<a class="headerlink" href="#features_7" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/1.1/accessibility.html">Accessibility</a></li>
<li><a href="/fop/1.1/complexscripts.html">Complex Scripts</a></li>
<li><a href="/fop/1.1/events.html">Events</a></li>
<li><a href="/fop/1.1/extensions.html">Extensions</a></li>
<li><a href="/fop/1.1/fonts.html">Fonts</a></li>
<li><a href="/fop/1.1/graphics.html">Graphics</a></li>
<li><a href="/fop/1.1/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/1.1/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/1.1/metadata.html">Metadata</a></li>
<li><a href="/fop/1.1/output.html">Output Targets</a></li>
<li><a href="/fop/1.1/pdfa.html">PDF/A</a></li>
<li><a href="/fop/1.1/pdfx.html">PDF/X</a></li>
<li><a href="/fop/1.1/pdfencryption.html">PDF Encryption</a></li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-10">FOP 1.0<a class="headerlink" href="#fop-10" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/1.0/">FOP 1.0 Overview</a></li>
<li><a href="/fop/1.0/releaseNotes_1.0.html">Release Notes</a></li>
<li><a href="/fop/1.0/changes_1.0.html">Changes (1.0)</a></li>
<li><a href="/fop/1.0/knownissues_overview.html">Known Issues</a></li>
<li><a href="/fop/1.0/upgrading.html">Upgrading</a></li>
<li>
<h3 id="using-apache-fop-10">Using Apache FOP 1.0<a class="headerlink" href="#using-apache-fop-10" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/1.0/compiling.html">Build</a></li>
<li><a href="/fop/1.0/configuration.html">Configure</a></li>
<li><a href="/fop/1.0/running.html">Run</a></li>
<li><a href="/fop/1.0/embedding.html">Embed</a></li>
<li><a href="/fop/1.0/servlets.html">Servlets</a></li>
<li><a href="/fop/1.0/anttask.html">Ant Task</a></li>
</ul>
</li>
<li>
<h3 id="features_8">Features<a class="headerlink" href="#features_8" title="Permanent link">&para;</a></h3>
<ul>
<li><a href="/fop/1.0/output.html">Output Targets</a></li>
<li><a href="/fop/1.0/intermediate.html">Intermediate Format</a></li>
<li><a href="/fop/1.0/pdfencryption.html">PDF Encryption</a></li>
<li><a href="/fop/1.0/pdfa.html">PDF/A</a></li>
<li><a href="/fop/1.0/pdfx.html">PDF/X</a></li>
<li><a href="/fop/1.0/graphics.html">Graphics</a></li>
<li><a href="/fop/1.0/fonts.html">Fonts</a></li>
<li><a href="/fop/1.0/hyphenation.html">Hyphenation</a></li>
<li><a href="/fop/1.0/extensions.html">Extensions</a></li>
<li><a href="/fop/1.0/events.html">Events</a></li>
<li><a href="/fop/1.0/metadata.html">Metadata</a></li>
<li><a href="/fop/1.0/accessibility.html">Accessibility</a></li>
</ul>
</li>
</ul>
</li>
<li>
<h2 id="fop-development">FOP Development<a class="headerlink" href="#fop-development" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/">General Info</a></li>
<li>
<h2 id="design">Design<a class="headerlink" href="#design" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/design/">Design Info</a></li>
</ul>
</li>
<li>
<h2 id="core-process">Core Process<a class="headerlink" href="#core-process" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/design/startup.html">Startup</a></li>
<li><a href="/fop/dev/design/parsing.html">XML Parsing</a></li>
<li><a href="/fop/dev/design/fotree.html">FO Tree</a></li>
<li><a href="/fop/dev/design/properties.html">Properties</a></li>
<li><a href="/fop/dev/design/layout.html">Layout</a></li>
<li><a href="/fop/dev/design/breakpos.html">Break Possibility</a></li>
<li><a href="/fop/dev/design/areas.html">Area Tree</a></li>
<li><a href="/fop/dev/design/renderers.html">Renderers</a></li>
</ul>
</li>
<li>
<h2 id="miscellaneous">Miscellaneous<a class="headerlink" href="#miscellaneous" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/design/images.html">Images</a></li>
<li><a href="/fop/dev/design/pdf-library.html">PDF Library</a></li>
<li><a href="/fop/dev/design/svg.html">SVG</a></li>
<li><a href="/fop/dev/design/embedding.html">Embedding</a></li>
<li><a href="/fop/dev/design/extending.html">Extending</a></li>
<li><a href="/fop/dev/design/optimise.html">Optimisations</a></li>
<li><a href="/fop/dev/design/useragent.html">User Agent</a></li>
</ul>
</li>
<li><a href="https://cwiki.apache.org/confluence/display/XMLGRAPHICSFOP/FOPProjectPages">Unresolved (Wiki)</a></li>
<li><a href="/fop/dev/svg.html">SVG</a></li>
<li><a href="/fop/dev/extensions.html">Extensions</a></li>
<li>
<h2 id="develop">Develop<a class="headerlink" href="#develop" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/implement.html">Walk-Thru</a></li>
<li><a href="https://issues.apache.org/jira/issues/?jql=project%20%3D%20FOP%20AND%20description%20~%20%22\%22[patch]\%22%22%20AND%20status%20in%20%28Open%2C%20%22In%20Progress%22%2C%20Reopened%29">Patch Queue</a></li>
<li><a href="/fop/dev/conventions.html">Conventions</a></li>
</ul>
</li>
<li>
<h2 id="test">Test<a class="headerlink" href="#test" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/testing.html">Testing</a></li>
</ul>
</li>
<li>
<h2 id="deploy">Deploy<a class="headerlink" href="#deploy" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/doc.html">Doc Mgmt</a></li>
<li><a href="/fop/dev/release.html">Release</a></li>
<li><a href="https://issues.apache.org/jira/issues/?jql=project%20%3D%20FOP%20AND%20issuetype%20%3D%20Bug%20AND%20status%20in%20%28Open%2C%20%22In%20Progress%22%2C%20Reopened%29">Bugs</a></li>
</ul>
</li>
<li>
<h2 id="resources_1">Resources<a class="headerlink" href="#resources_1" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/faq.html">FAQs</a></li>
<li><a href="/fop/dev/tools.html">Tools</a></li>
<li><a href="http://svn.apache.org/viewvc/xmlgraphics/fop">ViewVC</a></li>
</ul>
</li>
<li>
<h2 id="subpackages">SubPackages<a class="headerlink" href="#subpackages" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/fop/dev/rtflib.html">RTFlib</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
<h1 id="apache-xml-graphics">Apache&trade; XML Graphics<a class="headerlink" href="#apache-xml-graphics" title="Permanent link">&para;</a></h1>
<ul>
<li>
<h2 id="project-overview">Project Overview<a class="headerlink" href="#project-overview" title="Permanent link">&para;</a></h2>
<ul>
<li><a href="/team.html">Who We Are</a></li>
<li><a href="/legal.html">Legal Stuff</a></li>
<li><a href="/charter.html">Project Charter</a></li>
<li><a href="/mail.html">Mailing Lists</a></li>
<li><a href="/repo.html">Code Repositories</a></li>
<li><a href="https://www.apache.org/foundation/sponsorship.html">ASF Sponsorship Program</a></li>
<li><a href="https://www.apache.org/foundation/thanks.html">ASF Thanks</a></li>
<li><a href="https://www.apache.org/licenses/">Licenses</a></li>
<li><a href="/security.html">Apache XML Graphics Security</a></li>
<li><a href="https://www.apache.org/security/">ASF Security</a></li>
</ul>
</li>
</ul>
<h1 id="sub-projects">Sub Projects<a class="headerlink" href="#sub-projects" title="Permanent link">&para;</a></h1>
<ul>
<li><a href="/batik/">Apache Batik</a></li>
<li><a href="/commons/">Apache XML Graphics Commons</a></li>
</ul>
<h3 id="search-apache-xml-graphics">Search Apache XML Graphics<a class="headerlink" href="#search-apache-xml-graphics" title="Permanent link">&para;</a></h3>
<form name="search" id="search" action="https://www.google.com/search" method="get">
<input value="xmlgraphics.apache.org" name="sitesearch" type="hidden"/>
<input type="text" name="q" id="query" />
<input type="submit" id="submit" value="Search" />
</form>
<h3 id="apachecon-n-america">ApacheCon N. America<a class="headerlink" href="#apachecon-n-america" title="Permanent link">&para;</a></h3>
<p><a title="ApacheCon North America" href="https://www.apachecon.com"><img class="apachecon_logo" alt="ApacheCon North America" src="https://www.apachecon.com/images/landingpage/apachecon-logo.png" width="200" /></a><br /><br /></p>
<ul>
<li><strong><a href="https://www.apachecon.com/">ApacheCon NA</a></strong></li>
</ul>
<p>Hope to see you there!</p>
<h3 id="apachecon-europe">ApacheCon Europe<a class="headerlink" href="#apachecon-europe" title="Permanent link">&para;</a></h3>
<p><a title="ApacheCon Europe" href="https://www.apachecon.com"><img class="apachecon_logo" alt="ApacheCon Europe" src="https://www.apachecon.com/images/landingpage/apachecon-logo.png" width="200" /></a><br /><br /></p>
<ul>
<li><strong><a href="https://www.apachecon.com/">ApacheCon Europe</a></strong></li>
</ul>
<p>Hope to see you there!</p>
<p><a title="Apache Software Foundation" href="https://www.apache.org"><img id="asf_logo_url" alt="Apache Software Foundation " src="/images/asf_logo_url.png" width="200" /></a><br /><br /></p>
<p><a title="Support the Apache Software Foundation" href="https://donate.apache.org/"><img id="asf_support_url" alt="Support the Apache Software Foundation " src="https://blogs.apache.org/foundation/mediaresource/d67ca611-a57c-462d-ac23-95063f81d175" width="200" /></a></p>
<script>
$(document).ready(function () {
$('#navigation :header').click(function () {
var text = $(this).siblings('ul');
if (text.is(':hidden')) {
text.slideDown('200');
} else {
text.slideUp('200');
}
});
if ($('#navigation :header').siblings('ul')) {
$('#navigation :header').not('#search-apache-xml-graphics, #apachewzxhzdk3-xml-graphics, #sub-projects').append(' &raquo;');
}
$('#navigation > ul > li > ul > li ul').hide();
$('#project-overview').next().hide();
$('#versions').next().show();
var str=location.href.toLowerCase();
$("#navigation li a").each(function() {
if (str.indexOf(this.href.toLowerCase()) > -1) {
$(this).parents().slideDown('200');
$("li.highlight").removeClass("highlight");
$(this).parent().addClass("highlight");
}
});
})
</script> </div>
<div id="bannertext" style="border-bottom: 2px dashed #666666; height: 70px;">
<a href="/fop/"><img src="/images/apache-fop-logo.jpg" alt="The Apache FOP Project" width="120" height="65" style="float:left; margin-right: 15px;" /></a>
<h2>The Apache&trade; FOP Project</h2>
</div>
<h1>Apache(tm) FOP Design: Introduction</h1>
<h1>Apache&trade; FOP Design: Introduction</h1>
<p><note>The articles in this section pertain mainly to the <em>redesign</em> or <em>trunk</em> line of development. The redesign is mainly focusing on parts of the layout process (converting the FO tree into the Area Tree). Therefore other (non-layout) sections in this document are probably largely accurate for the maintenance branch, but should be used with care in that context.</note></p>
<h2 id="black-box">The Black Box View</h2>
<p>From a user's standpoint, Apache&trade; FOP is a black box that an xml file as input, performs some magic, then creates the desired output:</p>
<p><caption>Apache&trade; FOP from a User's Standpoint</caption>| Process | Result |
|---------|--------|
| . | XSL-FO document |
| FOP | Output: PDF, Postscript, Print, etc. |</p>
<p>Although this is simple, it is useful in defining the outer limits of FOP's core processing. There may be other things going on under FOP's control that are not really part of FOP. For example, FOP provides a convenience mechanism that takes semantic XML + an XSLT transformation as input, instead of XSL-FO. This is done outside of FOP's core processing (by Xalan), and it is therefore outside the scope of FOP's design, and outside the scope of the FOP design documents.</p>
<h2 id="primary-goals">Primary Design Goals</h2>
<p>A discussion of project design properly begins with a list of the goals of the project. Out of these goals will flow the design issues and details, and eventually, the implementation.</p>
<h3 id="pri-goal-conformance">Conformance to the XSL-FO Specification</h3>
<p>The current design goal is to reach the "basic" level of conformance, and to have enough flexibility in the design to reach "complete" conformance without major rewriting. After "basic" conformance is achieved, it is probable that higher levels of conformance will be sought.</p>
<h3 id="pri-goal-unlimited-size">Process Files of Arbitrary Size</h3>
<p>Except for user storage limitations, the design goal is to be able to process files of any size. In a separate but related issue, the design goal is to be able to process page-sequence elements of any size. (See <a href="fotree.html#recycle">Recycling FO Tree Memory</a> for a discussion of the use of page-sequence as a logical subdivided "chunk" on an FO document).</p>
<h2 id="secondary-goals">Secondary Design Goals</h2>
<h3 id="sec-goal-memory">Minimize Memory Use</h3>
<p>Many FOP design decisions revolve around trying to minimize the use of memory. The primary purpose here is to reduce the amount of data that must be serialized to storage during processing. Since our primary design goals include the ability to process files of arbitrary size, there is no way to avoid the need to serialize. However, many FOP users provide web access to documents that are created in real time. Performance is therefore an important issue in these real-world applications. To the extent that it can be done so without jeopardizing the primary design goals, FOP developers have identified keeping a small memory footprint as being an important secondary goal.</p>
<h2 id="big-picture">The Big Picture View</h2>
<p>With our design goals outlined, we'll now open the Black Box and look at the major processes inside. FOP has adopted the basic structure of the XSL-FO standard itself as a convenient model for the major processes in FOP. The Result in each row is the input for the next.</p>
<p><caption>FOP's Big Picture Design</caption>| Process | Process Result/Input for Next | Notes |
|---------|-------------------------------|-------|
| . | XSL-FO document | . |
| <a href="parsing.html">Parsing</a> | <a href="fotree.html">FO Tree</a> | . |
| <a href="properties.html#refine">Refinement</a> | <a href="properties.html#refined-fo-tree">Refined FO Tree</a> | . |
| <a href="layout.html">Layout</a> | <a href="areas.html">Area Tree</a> | Layout and Area Tree are not needed or used for the structural outputs (MIF and RTF), as they are not paginated. |
| <a href="renderers.html">Renderer</a> | Output: PDF, Postscript, Print, etc. | . |</p>
<p>In general, each piece of data will be processed in the same way. However, some information may be used more than once, and some may be used out of order. To reduce memory, one process may start before the previous process is completed.</p>
<p>For a detailed discussion of the design of any component, follow its link in the table above. Each component outlines the design issues which have already been addressed. These resolution of these design issues is in support of the primary and secondary goals, so they are not necessarily written in stone. However, most of them have been discussed at length among the developers, and are reasonably well settled.</p>
<h2 id="vocabulary">Vocabulary</h2>
<p>This section will attempt to provide information about any jargon used in the design documentation.</p>
<p>There is a rough relationship between terms used to describe the various trees in XSL-FO processing, all of which come from the XML and XSL-FO standards. In the table below, the <em>terms</em> (but not the actual items) in each column are roughly equivalent to each other:</p>
<table>
<thead>
<tr>
<th>Tree Concept</th>
<th>Thing (Noun)</th>
<th>Descriptive Item (Adjective)</th>
</tr>
</thead>
<tbody>
<tr>
<td>XML</td>
<td>Element</td>
<td>Attribute</td>
</tr>
<tr>
<td>FO Tree</td>
<td>Object</td>
<td>Property</td>
</tr>
<tr>
<td>Area Tree</td>
<td>Area</td>
<td>Trait</td>
</tr>
</tbody>
</table>
<ul>
<li>
<p><strong>LM</strong>: Layout Manager.</p>
</li>
<li>
<p><strong>PLB</strong>: PropertyListBuilder.</p>
</li>
</ul>
<div class="clear"></div>
<div id="footer">
<div class="copyright">
<div style="float:left; padding: 7px;">
<a title="Apache Software Foundation" href="http://www.apache.org"><img id="asf-feather-logo" alt="Apache Software Foundation" src="/images/asf_logo_url.png" width="200" /></a>
</div>
<p>
Copyright &copy; 2016 The Apache Software Foundation, Licensed under
the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.
<br />
Apache, Apache XML Graphics, Apache FOP, Apache Batik, the Apache feather logo, and the
Apache XML Graphics logos are trademarks of <a href="http://www.apache.org">The Apache
Software Foundation</a>. All other marks mentioned may be trademarks or registered
trademarks of their respective owners.
<br />
</p>
</div>
</div>
</body>
</html>