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Posted to commits@xmlgraphics.apache.org by bu...@apache.org on 2015/05/21 17:08:46 UTC
svn commit: r952197 [5/11] - in /websites/staging/xmlgraphics/trunk/content:
./ fop/2.0/ fop/2.0/images/
Added: websites/staging/xmlgraphics/trunk/content/fop/2.0/fonts.html
==============================================================================
--- websites/staging/xmlgraphics/trunk/content/fop/2.0/fonts.html (added)
+++ websites/staging/xmlgraphics/trunk/content/fop/2.0/fonts.html Thu May 21 15:08:45 2015
@@ -0,0 +1,700 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <title>Apache(tm) FOP: Fonts</title>
+
+ <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="//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="//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">
+ </div>
+
+ <div id="navigation">
+ <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="apachewzxhzdk2-fop">Apache™ FOP</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="/fop/maillist.html">Mailing Lists</a></li>
+<li><a href="/fop/license.html">License</a></li>
+<li>
+<h2 id="resources">Resources</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="http://wiki.apache.org/xmlgraphics-fop/FrontPage">Wiki</a></li>
+<li><a href="/fop/resources.html">Other</a></li>
+</ul>
+</li>
+<li>
+<h2 id="project">Project</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</h2>
+<ul>
+<li>
+<h2 id="fop-trunk-dev">FOP Trunk (dev)</h2>
+<ul>
+<li><a href="/fop/trunk/">Overview</a></li>
+<li><a href="/fop/trunk/upgrading.html">Upgrading</a></li>
+<li>
+<h3 id="using-apachewzxhzdk7-fop">Using Apache™ FOP</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</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-11">FOP 1.1</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</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_1">Features</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</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</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_2">Features</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</h2>
+<ul>
+<li><a href="/fop/dev/">General Info</a></li>
+<li>
+<h2 id="design">Design</h2>
+<ul>
+<li><a href="/fop/dev/design/">Design Info</a></li>
+</ul>
+</li>
+<li>
+<h2 id="core-process">Core Process</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</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="http://wiki.apache.org/xmlgraphics-fop/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</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</h2>
+<ul>
+<li><a href="/fop/dev/testing.html">Testing</a></li>
+</ul>
+</li>
+<li>
+<h2 id="deploy">Deploy</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</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</h2>
+<ul>
+<li><a href="/fop/dev/rtflib.html">RTFlib</a></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+<h1 id="apachewzxhzdk3-xml-graphics">Apache™ XML Graphics</h1>
+<ul>
+<li>
+<h2 id="project-overview">Project Overview</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="http://www.apache.org/foundation/sponsorship.html">ASF Sponsorship Program</a></li>
+<li><a href="http://www.apache.org/foundation/thanks.html">ASF Thanks</a></li>
+<li><a href="http://www.apache.org/licenses/">Licenses</a></li>
+<li><a href="/security.html">Apache XML Graphics Security</a></li>
+<li><a href="http://www.apache.org/security/">ASF Security</a></li>
+</ul>
+</li>
+</ul>
+<h1 id="sub-projects">Sub Projects</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</h3>
+<form name="search" id="search" action="http://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</h3>
+<p><a href="http://na.apachecon.com/"><img alt="ApacheCon North America" src="https://farm8.staticflickr.com/7566/15408186664_d08f3881c9_t.jpg" title="ApacheCon North America" /></a></p>
+<ul>
+<li><strong><a href="http://na.apachecon.com/">ApacheCon NA</a></strong></li>
+</ul>
+<h3 id="apachecon-europe">ApacheCon Europe</h3>
+<p><a href="http://apachecon.eu/" title="ApacheCon Europe"><img alt="ApacheCon Europe" src="http://www.apache.org/ads/ApacheCon/2014-eu-234x60.png" width="225" /></a></p>
+<ul>
+<li><strong><a href="http://apachecon.eu/">ApacheCon Europe</a></strong></li>
+</ul>
+<p>Hope to see you there!</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(' »');
+ }
+ $('#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™ FOP Project</h2>
+ </div><!-- <h1>Apache(tm) FOP: Fonts</h1> -->
+
+
+
+ <div id="content" class="grid_16">
+ <div id="items">
+ </div>
+ <!-- <div id="breadcrumb"><a href="/">Home</a> » <a href="/fop/">Fop</a> » <a href="/fop/2.0/">2.0</a></div> -->
+ <div class="section-content"><h1 id="apachewzxhzdk6-fop-fonts">Apache™ FOP: Fonts</h1>
+<p><authors><person email="" name="Jeremias Märki"></person><person email="" name="Tore Engvig"></person><person email="" name="Adrian Cumiskey"></person><person email="" name="Max Berger"></person></authors></p>
+<h2 id="intro">Summary</h2>
+<p>The following table summarizes the font capabilities of the various Apache™ FOP renderers:</p>
+<table>
+<thead>
+<tr>
+<th>Renderer</th>
+<th>Base-14</th>
+<th>AWT/OS</th>
+<th>Custom</th>
+<th>Custom Embedding</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>PDF</td>
+<td>yes</td>
+<td>no</td>
+<td>yes</td>
+<td>yes</td>
+</tr>
+<tr>
+<td>PostScript</td>
+<td>yes</td>
+<td>no</td>
+<td>yes</td>
+<td>yes</td>
+</tr>
+<tr>
+<td>PCL</td>
+<td>yes (modified)</td>
+<td>yes (painted as bitmaps)</td>
+<td>yes (painted as bitmaps)</td>
+<td>no</td>
+</tr>
+<tr>
+<td>AFP</td>
+<td>no</td>
+<td>no</td>
+<td>yes</td>
+<td>yes</td>
+</tr>
+<tr>
+<td>Java2D/AWT/Bitmap</td>
+<td>if available from OS</td>
+<td>yes</td>
+<td>yes</td>
+<td>n/a (display only)</td>
+</tr>
+<tr>
+<td>Print</td>
+<td>if available from OS</td>
+<td>yes</td>
+<td>yes</td>
+<td>controlled by OS printer driver</td>
+</tr>
+<tr>
+<td>RTF</td>
+<td>n/a (font metrics not needed)</td>
+<td>n/a</td>
+<td>n/a</td>
+<td>n/a</td>
+</tr>
+<tr>
+<td>TXT</td>
+<td>yes (used for layout but not for output)</td>
+<td>no</td>
+<td>yes (used for layout but not for output)</td>
+<td>no</td>
+</tr>
+<tr>
+<td>XML</td>
+<td>yes</td>
+<td>no</td>
+<td>yes</td>
+<td>n/a</td>
+</tr>
+</tbody>
+</table>
+<p>Note that Java2D based renderers (Java2D, AWT, Print, TIFF, PNG) support both system (AWT/OS) and custom fonts.</p>
+<h2 id="Base-14-Fonts">Base-14 Fonts</h2>
+<p>The Adobe PostScript and PDF Specification specify a set of 14 fonts that must be available to every PostScript interpreter and PDF reader: Helvetica (normal, bold, italic, bold italic), Times (normal, bold, italic, bold italic), Courier (normal, bold, italic, bold italic), Symbol and ZapfDingbats.</p>
+<p>The following font family names are hard-coded into FOP for the Base-14 font set:</p>
+<table>
+<thead>
+<tr>
+<th>Base-14 font</th>
+<th>font families</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td>Helvetica</td>
+<td>Helvetica, sans-serif, SansSerif</td>
+</tr>
+<tr>
+<td>Times</td>
+<td>Times, Times Roman, Times-Roman, serif, any</td>
+</tr>
+<tr>
+<td>Courier</td>
+<td>Courier, monospace, Monospaced</td>
+</tr>
+<tr>
+<td>Symbol</td>
+<td>Symbol</td>
+</tr>
+<tr>
+<td>ZapfDingbats</td>
+<td>ZapfDingbats</td>
+</tr>
+</tbody>
+</table>
+<p>Please note that recent versions of Adobe Acrobat Reader replace "Helvetica" with "Arial" and "Times" with "Times New Roman" internally. GhostScript replaces "Helvetica" with "Nimbus Sans L" and "Times" with "Nimbus Roman No9 L". Other document viewers may do similar font substitutions. If you need to make sure that there are no such substitutions, you need to specify an explicit font and embed it in the target document.</p>
+<h2 id="missing-fonts">Missing Fonts</h2>
+<p>When FOP does not have a specific font at its disposal (because it's not installed in the operating system or set up in FOP's configuration), the font is replaced with "any". "any" is internally mapped to the Base-14 font "Times" (see above).</p>
+<h2 id="missing-glyphs">Missing Glyphs</h2>
+<p>Every font contains a particular set of <a href="http://en.wikipedia.org/wiki/Glyph">glyphs</a>. If no glyph can be found for a given character, FOP will issue a warning and use the glpyh for "#" (if available) instead. Before it does that, it consults a (currently hard-coded) registry of glyph substitution groups (see Glyphs.java in Apache XML Graphics Commons). This registry can supply alternative glyphs in some cases (like using space when a no-break space is requested). But there's no guarantee that the result will be as expected (for example, in the case of hyphens and similar glyphs). A better way is to use a font that has all the necessary glyphs. This glyph substitution is only a last resort.</p>
+<h2 id="awt">System Fonts</h2>
+<p>Support for system fonts relies on the Java AWT subsystem for font metric information. Through operating system registration, the AWT subsystem knows what fonts are available on the system, and the font metrics for each one.</p>
+<p>When working with renderers that supports system fonts (see above table) and you're missing a font, you can just install it in your operating system and it should be available for these renderers. Please note that this is not true for output formats, such as PDF or PostScript, that only support custom fonts.</p>
+<h2 id="custom">Custom Fonts</h2>
+<p>Support for custom fonts is highly output format dependent (see above table). This section shows how to add Type 1, TrueType (TTF) and OpenType (OTF) fonts to the PDF, PostScript and Java2D-based renderers. Other renderers (like AFP) support other font formats. Details in this case can be found on the page about <a href="output.html">output formats</a>.</p>
+<p>In earlier FOP versions, it was always necessary to create an XML font metrics file if you wanted to add a custom font. This inconvenient step has been removed and in addition to that, FOP supports auto-registration of fonts, i.e. FOP can find fonts installed in your operating system or can scan user-specified directories for fonts. Font registration via XML font metrics has been deprecated and is not recommended although it is still supported by the current code.</p>
+<p>More information about fonts can be found at <a href="http://www.adobe.com/devnet/font.html">Adobe Font Technical Notes</a>.</p>
+<h3 id="opentype-advanced-font-features">OpenType Advanced Font Features</h3>
+<p>OpenType fonts support advanced layout features such as ligatures, small caps, swashes, alternates, old style figures and more. Please see <a href="http://www.microsoft.com/typography/otspec/TTOCHAP1.htm">Advanced Typographic Extensions - OpenType Layout</a>. These features are currently missing within FOP due to the implementation opting to favor a greater number of formats. </p>
+<p>While FOP may support embedding OpenType with advanced features in the future, the current method extracts the Compact Font Format (CFF) data containing among other things the character definitions, optionally subsets and embeds the result as a Type1C font. This allows the font to be used by both Postscript and older PDF versions while losing the features mentioned above. This is because embedding Open-Type in it's original state is only supported by PDF 1.6 and above.</p>
+<h2 id="bulk">Bulk Font Configuration</h2>
+<p>If you want FOP to use custom fonts, you need to tell it where to find them. This is done in the configuration file and once per renderer (because each output format is a little different). For convenience, FOP allows bulk registering of fonts; you can either tell FOP to find your operating system fonts or you can specify directories that it will search for support fonts. These fonts will then automatically be registered.</p>
+<div class="codehilite"><pre><span class="nt"><renderers></span>
+ <span class="nt"><renderer</span> <span class="na">mime=</span><span class="s">"application/pdf"</span><span class="nt">></span>
+ <span class="nt"><fonts></span>
+ <span class="c"><!-- register all the fonts found in a directory --></span>
+ <span class="nt"><directory></span>C:\MyFonts1<span class="nt"></directory></span>
+
+ <span class="c"><!-- register all the fonts found in a directory and all of its sub directories (use with care) --></span>
+ <span class="nt"><directory</span> <span class="na">recursive=</span><span class="s">"true"</span><span class="nt">></span>C:\MyFonts2<span class="nt"></directory></span>
+
+ <span class="c"><!-- automatically detect operating system installed fonts --></span>
+ <span class="nt"><auto-detect/></span>
+ <span class="nt"></fonts></span>
+ <span class="nt"></renderer></span>
+<span class="nt"></renderers></span>
+</pre></div>
+
+
+<p><note>Review the documentation for <a href="configuration.html">FOP Configuration</a> for instructions on making the FOP configuration available to FOP when it runs. Otherwise, FOP has no way of finding your custom font information. It is currently not possible to easily configure fonts from Java code.</note></p>
+<h3 id="register">Register Fonts with FOP</h3>
+<p>You must tell FOP how to find and use the font files by registering them in the <a href="configuration.html">FOP Configuration</a>. Add entries for your custom fonts, regardless of font type, to the configuration file in a manner similar to the following:</p>
+<div class="codehilite"><pre><span class="nt"><renderers></span>
+ <span class="nt"><renderer</span> <span class="na">mime=</span><span class="s">"application/pdf"</span><span class="nt">></span>
+ <span class="nt"><fonts></span>
+ <span class="nt"><font</span> <span class="na">kerning=</span><span class="s">"yes"</span> <span class="na">embed-url=</span><span class="s">"/System/Library/Fonts/Arial.ttf"</span> <span class="na">embedding-mode=</span><span class="s">"subset"</span><span class="nt">></span>
+ <span class="nt"><font-triplet</span> <span class="na">name=</span><span class="s">"Arial"</span> <span class="na">style=</span><span class="s">"normal"</span> <span class="na">weight=</span><span class="s">"normal"</span><span class="nt">/></span>
+ <span class="nt"></font></span>
+ <span class="nt"><font</span> <span class="na">kerning=</span><span class="s">"yes"</span> <span class="na">embed-url=</span><span class="s">"/System/Library/Fonts/AEHO____.PFB"</span><span class="nt">></span>
+ <span class="nt"><font-triplet</span> <span class="na">name=</span><span class="s">"Avenir-HeavyOblique"</span> <span class="na">style=</span><span class="s">"normal"</span> <span class="na">weight=</span><span class="s">"bold"</span><span class="nt">/></span>
+ <span class="nt"></font></span>
+ <span class="nt"></fonts></span>
+ <span class="nt"></renderer></span>
+<span class="nt"></renderers></span>
+</pre></div>
+
+
+<ul>
+<li>
+<p>The "embed-url" attribute is used to specify the font file. Relative URLs are resolved relative to the font-base property (or base) if available. See <a href="configuration.html">FOP: Configuration</a> for more information. </p>
+</li>
+<li>
+<p>The "embedding-mode" attribute is optional and can take two values: subset (the default) and full. If not specified the font is subset embedded for TTF and OTF or full embedded for Type 1, unless it is explicitly referenced (see below).</p>
+</li>
+<li>
+<p>The font "kerning" attribute is optional. Default is "true".</p>
+</li>
+<li>
+<p>When setting the "embed-url" attribute for Type 1 fonts, be sure to specify the PFB (actual font data), not the PFM (font metrics) file. If the PFM (or AFM) file is in a different location (i.e., not in the same directory) then you need to specify an "embed-url-pfm" (or "embed-url-afm") attribute next to the "embed-url" one.</p>
+</li>
+<li>
+<p>The attribute "encoding-mode" is optional an may have the following values:</p>
+<ul>
+<li>
+<p>auto: default font encoding mode ("cid" for Truetype, "single-byte" for Type 1)</p>
+</li>
+<li>
+<p>single-byte: use single-byte encodings in the target format (if applicable)</p>
+</li>
+<li>
+<p>cid: encode as CID-keyed font (currently only supported for PDF output with TrueType fonts)</p>
+</li>
+</ul>
+</li>
+<li>
+<p>The fonts "directory" tag can be used to register fonts contained within a single or list of directory paths. The "recursive" attribute can be specified to recursively add fonts from all sub directories.</p>
+</li>
+<li>
+<p>The fonts "auto-detect" tag can be used to automatically register fonts that are found to be installed on the native operating system.</p>
+</li>
+<li>
+<p>Fonts registered with "font" tag configurations override fonts found by means of "directory" tag definitions.</p>
+</li>
+<li>
+<p>Fonts found as a result of a "directory" tag configuration override fonts found as a result of the "auto-detect" tag being specified.</p>
+</li>
+<li>
+<p>If relative URLs are specified, they are evaluated relative to the value of the "font-base" setting. If there is no "font-base" setting, the fonts are evaluated relative to the base directory.</p>
+</li>
+<li>
+<p>If a fop.xconf is not used, or the "embed-url" attribute is missing, the fonts are referenced (and the default Base-14 is used in this case).</p>
+</li>
+</ul>
+<h3 id="truetype-collections-metrics">TrueType Collections</h3>
+<p>TrueType collections (.ttc files) contain more than one font. The individual sub-fonts of a TrueType Collection can be selected using the "sub-font" attribute on the "font" element. Example:</p>
+<div class="codehilite"><pre><span class="nt"><font</span> <span class="na">embed-url=</span><span class="s">"gulim.ttc"</span> <span class="na">sub-font=</span><span class="s">"GulimChe"</span><span class="nt">></span>
+ <span class="nt"><font-triplet</span> <span class="na">name=</span><span class="s">"GulimChe"</span> <span class="na">style=</span><span class="s">"normal"</span> <span class="na">weight=</span><span class="s">"normal"</span><span class="nt">/></span>
+<span class="nt"></font></span>
+</pre></div>
+
+
+<h3 id="autodetect">Auto-Detect and auto-embed feature</h3>
+<p>When the "auto-detect" flag is set in the configuration, FOP will automatically search for fonts in the default paths for your operating system.</p>
+<p>FOP will also auto-detect fonts which are available in the classpath, if they are described as "application/x-font" in the MANIFEST.MF file. For example, if your .jar file contains font/myfont.ttf:</p>
+<div class="codehilite"><pre><span class="n">Manifest</span><span class="o">-</span><span class="n">Version</span><span class="p">:</span> 1<span class="p">.</span>0
+
+ <span class="n">Name</span><span class="p">:</span> <span class="n">font</span><span class="o">/</span><span class="n">myfont</span><span class="p">.</span><span class="n">ttf</span>
+ <span class="n">Content</span><span class="o">-</span><span class="n">Type</span><span class="p">:</span> <span class="n">application</span><span class="o">/</span><span class="n">x</span><span class="o">-</span><span class="n">font</span>
+</pre></div>
+
+
+<p>This feature allows you to create JAR files containing fonts. The JAR files can be added to fop by providem them in the classpath, e.g. copying them into the lib/ directory.</p>
+<h4 id="font-cache">The font cache</h4>
+<p>Apache FOP maintains a cache file that is used to speed up auto-detection. This file is usually found in the ".fop" directory under the user's home directory. It's called "fop-fonts.cache". When the user's home directory is not writable, the font cache file is put in the directory for temporary files.</p>
+<p>If there was a problem loading a particular font, it is flagged in the cache file so it is not loaded anymore. So, if a font is actually around but is still not found by Apache FOP, it's worth a try to delete the font cache file which forces Apache FOP to reparse all fonts.</p>
+<h3 id="referencing_fonts">Referencing Fonts</h3>
+<p>By default, all fonts are embedded if an output format supports font embedding. In some cases, however, it is preferred that some fonts are only referenced. When working with referenced fonts it is important to be in control of the target environment where the produced document is consumed, i.e. the necessary fonts have to be installed there.</p>
+<p>There are two different ways how you can specify that a font should be referenced:</p>
+<ol>
+<li>
+<p>When explicitly configuring a font, font referencing is controlled by the embed-url attribute. If you don't specify the embed-url attribute the font will not be embedded, but will only be referenced.</p>
+</li>
+<li>
+<p>For automatically configured fonts there's a different mechanism to specify which fonts should be referenced rather than embedded. This is done in the "referenced-fonts" element in the configuration. Here's an example:</p>
+<div class="codehilite"><pre><span class="nt"><fop</span> <span class="na">version=</span><span class="s">"1.0"</span><span class="nt">></span>
+ <span class="nt"><fonts></span>
+ <span class="nt"><referenced-fonts></span>
+ <span class="nt"><match</span> <span class="na">font-family=</span><span class="s">"Helvetica"</span><span class="nt">/></span>
+ <span class="nt"><match</span> <span class="na">font-family=</span><span class="s">"DejaVu.*"</span><span class="nt">/></span>
+ <span class="nt"></referenced-fonts></span>
+ <span class="nt"></fonts></span>
+<span class="nt"></fop></span>
+</pre></div>
+
+
+</li>
+</ol>
+<p>At the moment, you can only match fonts against their font-family. It is possible to use regular expressions as is shown in the second example above ("DejaVu.*"). The syntax for the regular expressions used here are the one used by the <a href="http://java.sun.com/j2se/1.4/docs/api/java/util/regex/package-summary.html">package</a>. So, in the above snippet "Helvetica" and all variants of the "DejaVu" font family are referenced. If you want to reference all fonts, just specify <code>font-family=".*"</code>.</p>
+<p>The <code>referenced-fonts</code> element can be placed either inside the general <code>fonts</code> element (right under the root) or in the <code>fonts</code> element under the renderer configuration. In the first case, matches apply to all renderers. In the second case, matches only apply to the renderer where the element was specified. Both cases can be used at the same time.</p>
+<h3 id="embedding_fonts">Embedding Fonts</h3>
+<p>Some notes related to embedded fonts:</p>
+<ul>
+<li>
+<p>When FOP embeds a font in PDF, it adds a prefix to the fontname to ensure that the name will not match the fontname of an installed font. This is helpful with older versions of Acrobat Reader that preferred installed fonts over embedded fonts.</p>
+</li>
+<li>
+<p>When embedding PostScript fonts, the entire font is always embedded.</p>
+</li>
+<li>
+<p>When embedding TrueType (ttf) or TrueType Collections (ttc), a subset of the original font, containing only the glyphs used, is embedded in the output document. That's the default, but if you specify encoding-mode="single-byte" (see above), the complete font is embedded.</p>
+</li>
+</ul>
+<h3 id="font_substitution">Font Substitution</h3>
+<p>When a <code><substitutions/></code> section is defined in the configuration, FOP will re-map any font-family references found in your FO input to a given substitution font.</p>
+<ul>
+<li>
+<p>If a <code><substitution/></code> is declared, it is mandatory that both a <from/> and <to/> child element is declared with a font-family attribute.</p>
+</li>
+<li>
+<p>Both font-weight and font-style are optional attributes, if they are provided then a value of 'normal' is assumed.</p>
+</li>
+</ul>
+<p>For example you could make all FO font-family references to 'Arial' with weights between 700 and 900 reference the normal 'Arial Black' font.</p>
+<div class="codehilite"><pre><span class="nt"><fop</span> <span class="na">version=</span><span class="s">"1.0"</span><span class="nt">></span>
+ <span class="nt"><fonts></span>
+ <span class="nt"><substitutions></span>
+ <span class="nt"><substitution></span>
+ <span class="nt"><from</span> <span class="na">font-family=</span><span class="s">"Arial"</span> <span class="na">font-weight=</span><span class="s">"700..900"</span><span class="nt">/></span>
+ <span class="nt"><to</span> <span class="na">font-family=</span><span class="s">"Arial Black"</span><span class="nt">/></span>
+ <span class="nt"></substitution></span>
+ <span class="nt"><substitution></span>
+ <span class="nt"><from</span> <span class="na">font-family=</span><span class="s">"FrutigerLight"</span><span class="nt">/></span>
+ <span class="nt"><to</span> <span class="na">font-family=</span><span class="s">"Times"</span> <span class="na">font-weight=</span><span class="s">"bold"</span> <span class="na">font-style=</span><span class="s">"italic"</span><span class="nt">/></span>
+ <span class="nt"></substitution></span>
+ <span class="nt"></substitutions></span>
+ <span class="nt"></fonts></span>
+<span class="nt"></fop></span>
+</pre></div>
+
+
+<h2 id="selection">Font Selection Strategies</h2>
+<p>There are two font selection strategies: character-by-character or auto. The default is auto.</p>
+<p>Auto selected the first font from the list which is able to display the most characters in a given word. This means (assume font A has characters for abclmn, font B for lnmxyz, fontlist is A,B):</p>
+<ul>
+<li>
+<p>aaa lll xxx would be displayed in fonts A A B</p>
+</li>
+<li>
+<p>aaaxx would be displayed in font A</p>
+</li>
+<li>
+<p>aaaxxx would be displayed in font A</p>
+</li>
+<li>
+<p>aaaxxxx would be displayed in font B</p>
+</li>
+</ul>
+<p>Character-by-Character is NOT yet supported!</p>
+<h2 id="font-list">Font List Command-Line Tool</h2>
+<p>FOP contains a small command-line tool that lets you generate a list of all configured fonts. Its class name is: <code>org.apache.fop.tools.fontlist.FontListMain</code>. Run it with the "-?" parameter to get help for the various options.</p></div>
+ </div>
+
+ <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/feather-small.gif" width="100" /></a>
+ </div>
+ <p>
+ Copyright © 2013 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>
Added: websites/staging/xmlgraphics/trunk/content/fop/2.0/graphics.html
==============================================================================
--- websites/staging/xmlgraphics/trunk/content/fop/2.0/graphics.html (added)
+++ websites/staging/xmlgraphics/trunk/content/fop/2.0/graphics.html Thu May 21 15:08:45 2015
@@ -0,0 +1,674 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <title>Apache(tm) FOP: Graphics Formats</title>
+
+ <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="//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="//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">
+ </div>
+
+ <div id="navigation">
+ <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="apachewzxhzdk2-fop">Apache™ FOP</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>
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+<li><a href="/fop/gethelp.html">Getting Help</a></li>
+<li><a href="/fop/faq.html">FAQs</a></li>
+<li><a href="/fop/maillist.html">Mailing Lists</a></li>
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+<h2 id="resources">Resources</h2>
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+<li><a href="http://wiki.apache.org/xmlgraphics-fop/FrontPage">Wiki</a></li>
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+<h2 id="project">Project</h2>
+<ul>
+<li><a href="/fop/news.html">News</a></li>
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+<li><a href="/fop/changes.html">Changes</a></li>
+</ul>
+</li>
+<li>
+<h2 id="versions">Versions</h2>
+<ul>
+<li>
+<h2 id="fop-trunk-dev">FOP Trunk (dev)</h2>
+<ul>
+<li><a href="/fop/trunk/">Overview</a></li>
+<li><a href="/fop/trunk/upgrading.html">Upgrading</a></li>
+<li>
+<h3 id="using-apachewzxhzdk7-fop">Using Apache™ FOP</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</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>
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+<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-11">FOP 1.1</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</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_1">Features</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</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</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_2">Features</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</h2>
+<ul>
+<li><a href="/fop/dev/">General Info</a></li>
+<li>
+<h2 id="design">Design</h2>
+<ul>
+<li><a href="/fop/dev/design/">Design Info</a></li>
+</ul>
+</li>
+<li>
+<h2 id="core-process">Core Process</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</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="http://wiki.apache.org/xmlgraphics-fop/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</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</h2>
+<ul>
+<li><a href="/fop/dev/testing.html">Testing</a></li>
+</ul>
+</li>
+<li>
+<h2 id="deploy">Deploy</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</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</h2>
+<ul>
+<li><a href="/fop/dev/rtflib.html">RTFlib</a></li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+</li>
+</ul>
+<h1 id="apachewzxhzdk3-xml-graphics">Apache™ XML Graphics</h1>
+<ul>
+<li>
+<h2 id="project-overview">Project Overview</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="http://www.apache.org/foundation/sponsorship.html">ASF Sponsorship Program</a></li>
+<li><a href="http://www.apache.org/foundation/thanks.html">ASF Thanks</a></li>
+<li><a href="http://www.apache.org/licenses/">Licenses</a></li>
+<li><a href="/security.html">Apache XML Graphics Security</a></li>
+<li><a href="http://www.apache.org/security/">ASF Security</a></li>
+</ul>
+</li>
+</ul>
+<h1 id="sub-projects">Sub Projects</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</h3>
+<form name="search" id="search" action="http://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</h3>
+<p><a href="http://na.apachecon.com/"><img alt="ApacheCon North America" src="https://farm8.staticflickr.com/7566/15408186664_d08f3881c9_t.jpg" title="ApacheCon North America" /></a></p>
+<ul>
+<li><strong><a href="http://na.apachecon.com/">ApacheCon NA</a></strong></li>
+</ul>
+<h3 id="apachecon-europe">ApacheCon Europe</h3>
+<p><a href="http://apachecon.eu/" title="ApacheCon Europe"><img alt="ApacheCon Europe" src="http://www.apache.org/ads/ApacheCon/2014-eu-234x60.png" width="225" /></a></p>
+<ul>
+<li><strong><a href="http://apachecon.eu/">ApacheCon Europe</a></strong></li>
+</ul>
+<p>Hope to see you there!</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(' »');
+ }
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+ $('#versions').next().show();
+ var str=location.href.toLowerCase();
+ $("#navigation li a").each(function() {
+ if (str.indexOf(this.href.toLowerCase()) > -1) {
+ $(this).parents().slideDown('200');
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+ }
+ });
+})
+</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™ FOP Project</h2>
+ </div><!-- <h1>Apache(tm) FOP: Graphics Formats</h1> -->
+
+
+
+ <div id="content" class="grid_16">
+ <div id="items">
+ </div>
+ <!-- <div id="breadcrumb"><a href="/">Home</a> » <a href="/fop/">Fop</a> » <a href="/fop/2.0/">2.0</a></div> -->
+ <div class="section-content"><h1 id="apachewzxhzdk0-fop-graphics-formats">Apache™ FOP: Graphics Formats</h1>
+<h2 id="introduction">Introduction</h2>
+<p>Some noteworthy features of the image handling subsystem are:</p>
+<ul>
+<li>
+<p>The image libraries Jimi and JAI are not supported. Instead, Apache™ FOP uses the Image I/O API that was introduced with Java 1.4 for all bitmap codecs.</p>
+</li>
+<li>
+<p>Some bitmap images are not converted to a standardized 24 bit RGB image but are instead handled in their native format.</p>
+</li>
+<li>
+<p>A plug-in mechanism offers a possibility to add support for new formats without changing the FOP's source code.</p>
+</li>
+</ul>
+<p>The actual <a href="http://xmlgraphics.apache.org/commons/image-loader.html">image loading framework</a> does not reside in Apache FOP, but in <a href="http://xmlgraphics.apache.org/commons/">XML Graphics Commons</a>.</p>
+<h2 id="support-overview">Overview of Graphics Support</h2>
+<p>The table below summarizes the <em>theoretical</em> support for graphical formats within FOP. In other words, within the constraints of the limitations listed here, these formats <em>should</em> work. However, many of them have not been tested, and there may be limitations that have not yet been discovered or documented. The packages needed to support some formats are not included in the FOP distribution and must be installed separately. Follow the links in the "Support Through" columns for more details.</p>
+<table>
+<thead>
+<tr>
+<th>Format</th>
+<th>Type</th>
+<th align="center">Support Through <a href="#native">Apache FOP (native)</a></th>
+<th align="center">Support Through <a href="#batik">Apache Batik</a></th>
+<th align="center">Support Through <a href="#imageio">Image I/O</a></th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td><a href="#bmp">BMP</a> (Microsoft Windows Bitmap)</td>
+<td>bitmap</td>
+<td align="center"></td>
+<td align="center"></td>
+<td align="center">X [1]</td>
+</tr>
+<tr>
+<td><a href="#emf">EMF</a> (Windows Enhanced Metafile)</td>
+<td>vector (with embedded bitmaps)</td>
+<td align="center">(X)</td>
+<td align="center"></td>
+<td align="center"></td>
+</tr>
+<tr>
+<td><a href="#eps">EPS</a> (Encapsulated PostScript)</td>
+<td>metafile (both bitmap and vector), most frequently used for vector drawings</td>
+<td align="center">(X)</td>
+<td align="center"></td>
+<td align="center"></td>
+</tr>
+<tr>
+<td><a href="#gif">GIF</a> (Graphics Interchange Format)</td>
+<td>bitmap</td>
+<td align="center"></td>
+<td align="center"></td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#jpeg">JPEG</a> (Joint Photographic Experts Group)</td>
+<td>bitmap</td>
+<td align="center">(X)</td>
+<td align="center"></td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#png">PNG</a> (Portable Network Graphic)</td>
+<td>bitmap</td>
+<td align="center">(X)</td>
+<td align="center"></td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#svg">SVG</a> (Scalable Vector Graphics)</td>
+<td>vector (with embedded bitmaps)</td>
+<td align="center"></td>
+<td align="center">X</td>
+<td align="center"></td>
+</tr>
+<tr>
+<td><a href="#tiff">TIFF</a> (Tag Image Format File)</td>
+<td>bitmap</td>
+<td align="center">(X)</td>
+<td align="center"></td>
+<td align="center">X [1]</td>
+</tr>
+<tr>
+<td><a href="#wmf">WMF</a> (Windows Metafile)</td>
+<td>vector (with embedded bitmaps)</td>
+<td align="center"></td>
+<td align="center">(X)</td>
+<td align="center"></td>
+</tr>
+</tbody>
+</table>
+<p>Legend:</p>
+<ul>
+<li>
+<p>"(X)" means restricted support. Please see the details below.</p>
+</li>
+<li>
+<p>[1]: Requires the presence of <a href="http://jai-imageio.dev.java.net/">JAI Image I/O Tools</a> (or an equivalent Image I/O compatible codec) in the classpath. JAI Image I/O Tools also adds support for JPEG 2000, WBMP, RAW and PNM. Other Image I/O codecs may provide support for additional formats.</p>
+</li>
+</ul>
+<p><note><a href="http://jai-imageio.dev.java.net/">JAI Image I/O Tools</a> is not the same as the <a href="http://java.sun.com/javase/technologies/desktop/media/jai/">JAI library</a> ! The former simply exposes JAI's codecs using the Image I/O API but does not include all the image manipulation functionality.</note></p>
+<h3 id="format-map">Map of supported image formats by output format</h3>
+<p>Not all image formats are supported for all output formats! For example, while you can use EPS (Encapsulated PostScript) files when you generate PostScript output, this format will not be supported by any other output format. Here's an overview of which image formats are supported by which output format:</p>
+<table>
+<thead>
+<tr>
+<th>Image Format</th>
+<th align="center">PDF</th>
+<th align="center">PostScript</th>
+<th align="center">Java2D, PNG, TIFF, AWT</th>
+<th align="center">PCL</th>
+<th align="center">AFP</th>
+<th align="center">RTF</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td><a href="#bmp">BMP</a> (Microsoft Windows Bitmap)</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#emf">EMF</a> (Windows Enhanced Metafile)</td>
+<td align="center"></td>
+<td align="center"></td>
+<td align="center"></td>
+<td align="center"></td>
+<td align="center"></td>
+<td align="center">X [1]</td>
+</tr>
+<tr>
+<td><a href="#eps">EPS</a> (Encapsulated PostScript)</td>
+<td align="center"></td>
+<td align="center">X [1]</td>
+<td align="center"></td>
+<td align="center"></td>
+<td align="center"></td>
+<td align="center"></td>
+</tr>
+<tr>
+<td><a href="#gif">GIF</a> (Graphics Interchange Format)</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#jpeg">JPEG</a> (Joint Photographic Experts Group)</td>
+<td align="center">X [1]</td>
+<td align="center">X [1]</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X [1]</td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#png">PNG</a> (Portable Network Graphic)</td>
+<td align="center">X [2]</td>
+<td align="center">X [2]</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#svg">SVG</a> (Scalable Vector Graphics)</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#tiff">TIFF</a> (Tag Image Format File)</td>
+<td align="center">X [2]</td>
+<td align="center">X [2]</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X [2]</td>
+<td align="center">X</td>
+</tr>
+<tr>
+<td><a href="#wmf">WMF</a> (Windows Metafile)</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+<td align="center">X</td>
+</tr>
+</tbody>
+</table>
+<p>Legend:</p>
+<ul>
+<li>
+<p>[1]: Supported without the need to decode the image.</p>
+</li>
+<li>
+<p>[2]: Supported without the need to decode the image, but only for certain subtypes.</p>
+</li>
+</ul>
+<h2 id="packages">Graphics Packages</h2>
+<h3 id="native">XML Graphics Commons Native</h3>
+<p><a href="http://xmlgraphics.apache.org/commons/">XML Graphics Commons</a> supports a number of graphic file formats natively as basic functionality: all bitmap formats for which there are Image I/O codecs available (JPEG, PNG, GIF, TIFF, etc.), EPS and EMF.</p>
+<h3 id="fop-native">FOP Native</h3>
+<p>FOP has no native image plug-ins for the image loading framework of its own but currently hosts the Batik-dependent SVG and WMF plug-ins until they can be moved to <a href="http://xmlgraphics.apache.org/batik/">Apache Batik</a>.</p>
+<h3 id="batik">Apache Batik</h3>
+<p><a href="http://xmlgraphics.apache.org/batik/">Apache Batik</a> will later receive the SVG and WMF plug-ins for the image loading framework that are currently hosted inside FOP.</p>
+<p>Current FOP distributions include a distribution of the <a href="http://xmlgraphics.apache.org/batik/">Apache Batik</a>. Because Batik's API changes frequently, it is highly recommended that you use the version that ships with FOP, at least when running FOP.
+<warning>Batik must be run in a graphical environment.</warning>
+Batik must be run in a graphical environment. It uses AWT classes for rendering SVG, which in turn require an X server on Unixish systems. If you run a server without X, or if you can't connect to the X server due to security restrictions or policies (a so-called "headless" environment), SVG rendering will fail.</p>
+<p>Here are some workarounds:</p>
+<ul>
+<li>
+<p>Start Java with the <code>-Djava.awt.headless=true</code> command line option.</p>
+</li>
+<li>
+<p>Install an X server which provides an in-memory framebuffer without actually using a screen device or any display hardware. One example is Xvfb.</p>
+</li>
+<li>
+<p>Install a toolkit which emulates AWT without the need for an underlying X server. One example is the <a href="http://www.eteks.com/pja/en">PJA toolkit</a>, which is free and comes with detailed installation instructions.</p>
+</li>
+</ul>
+<h3 id="imageio">Image I/O</h3>
+<p>The image loading framework in <a href="http://xmlgraphics.apache.org/commons/">XML Graphics Commons</a> provides a wrapper to load images through the <a href="http://java.sun.com/j2se/1.4.2/docs/guide/imageio/index.html">JDK's Image I/O API</a> (JSR 015). Image I/O allows to dynamically add additional image codecs. An example of such an add-on library are the <a href="http://java.sun.com/products/java-media/jai/">JAI Image I/O Tools</a> available from Sun.</p>
+<h2 id="image-formats">Details on image formats</h2>
+<h3 id="bmp">BMP</h3>
+<p>BMP images are supported through an Image I/O codec. There may be limitations of the codec which are outside the control of Apache FOP.</p>
+<h3 id="emf">EMF</h3>
+<p>Windows Enhanced Metafiles (EMF) are only supported in RTF output where they are embedded without decoding.</p>
+<h3 id="eps">EPS</h3>
+<p>Apache FOP allows to use EPS files when generating PostScript output only.</p>
+<p>Other output targets can't be supported at the moment because FOP lacks a PostScript interpreter. Furthermore, FOP is currently not able to parse the preview bitmaps sometimes contained in EPS files.</p>
+<h3 id="gif">GIF</h3>
+<p>GIF images are supported through an Image I/O codec. Transparency is supported but not guaranteed to work with every output format.</p>
+<h3 id="jpeg">JPEG</h3>
+<p>FOP native support (i.e. the handling of undecoded images) of JPEG does not include all variants, especially those containing unusual color lookup tables and color profiles. If you have trouble with a JPEG image in FOP, try opening it with an image processing program (such as Photoshop or Gimp) and then saving it. Specifying 24-bit color output may also help. For the PDF and PostScript renderers most JPEG images can be passed through without decompression. User reports indicate that grayscale, RGB, and CMYK color spaces are all rendered properly. However, for other output formats, the JPEG images have to be decompressed. Tests have shown that there are some limitation in some Image I/O codecs concerning images in the CMYK color space. Work-arounds are in place but may not always work as expected.</p>
+<h3 id="png">PNG</h3>
+<p>PNG images are supported both through an Image I/O codec (ImageLoaderImageIO) and through native support. FOP native support is possible with PDF and PS output, and can be enabled either through an internal codec (ImageLoaderPNG) or by directly handling undecoded images (ImageLoaderRawPNG). More information is available in the <a href="http://wiki.apache.org/xmlgraphics-fop/HowTo/ImageLoaderRawPNG">wiki page</a>. Transparency is supported but not guaranteed to work with every output format.</p>
+<h3 id="svg">SVG</h3>
+<h4 id="svg-intro">Introduction</h4>
+<p>FOP uses <a href="#batik">Apache Batik</a> for SVG support. This format can be handled as an <code>fo:instream-foreign-object</code> or in a separate file referenced with <code>fo:external-graphic</code>.</p>
+<p><note>Batik's SVG Rasterizer utility may also be used to convert standalone SVG documents into PDF. For more information please see the <a href="http://xmlgraphics.apache.org/batik/svgrasterizer.html">SVG Rasterizer documentation</a> on the Batik site.</note></p>
+<h4 id="svg-pdf-graphics">Placing SVG Graphics into PDF</h4>
+<p>The SVG is rendered into PDF by using PDF commands to draw and fill lines and curves. This means that the graphical objects created with this remain as vector graphics. The same applies to PostScript output. For other output formats the SVG graphic may be converted to a bitmap image.</p>
+<p>There are a number of SVG things that cannot be converted directly into PDF. Parts of the graphic such as effects, patterns and images are inserted into the PDF as a raster graphic. The resolution of these raster images can be controlled through the "target resolution" setting in the <a href="configuration.html">configuration</a>.</p>
+<p>Currently transparency is limited in PDF so some SVG images that contain effects or graphics with transparent areas may not be displayed correctly.</p>
+<h4 id="svg-pdf-text">Placing SVG Text into PDF and PostScript</h4>
+<p>If possible, Batik will use normal PDF or PostScript text when inserting text. It does this by checking if the text can be drawn normally and the font is supported. This example svg <a href="../dev/svg/text.svg">text.svg</a> / <a href="../dev/svg/text.pdf">text.pdf</a> / <a href="../dev/svg/text.png">text.png</a> shows how various types and effects with text are handled. Note that SVG font support is not yet implemented. Furthermore, text handling in PostScript output is inferior to PDF output - more text will be painted as shapes in PS than in PDF.</p>
+<p>When there's no support to paint text using native text operations, text is converted and drawn as a set of shapes by Batik, using the stroking text painter. This means that a typical character will have about 10 curves (each curve consists of at least 20 characters). This can make the output files large and when it is viewed the viewer may not normally draw those fine curves very well (In Adobe Acrobat, turning on "Smooth Line Art" in the preferences will fix this). Copy/paste functionality will not be supported in this case. If the text is inserted into the output file using the inbuilt text commands it will use a single character.</p>
+<p>Note that because SVG text can be rendered as either text or a vector graphic, you may need to consider settings in your viewer for both. The Acrobat viewer has both "smooth line art" and "smooth text" settings that may need to be set for SVG images to be displayed nicely on your screen (see Edit / Preferences / Display). This setting will not affect the printing of your document, which should be OK in any case, but will only affect the quality of the screen display.</p>
+<h4 id="svg-scaling">Scaling</h4>
+<p>Currently, SVG images are rendered with the dimensions specified <em>in the SVG file</em>, within the viewport specified in the fo:external-graphic element. For everything to work properly, the two should be equal. The SVG standard leaves this issue as an implementation detail. Additional scaling options are available through XSL-FO means.</p>
+<p>If you use pixels to specify the size of an SVG graphic the "source resolution" setting in the <a href="configuration.html">configuration</a> will be used to determine the size of a pixel. The use of pixels to specify sizes is discouraged as they may be interpreted differently in different environments.</p>
+<h4 id="svg-problems">Known Problems</h4>
+<ul>
+<li>
+<p>Soft mask transparency is combined with white so that it looks better on PDF 1.3 viewers but this causes the soft mask to be slightly lighter or darker on PDF 1.4 viewers.</p>
+</li>
+<li>
+<p>There is some problem with a gradient inside a pattern which may cause a PDF error when viewed in Acrobat 5.</p>
+</li>
+<li>
+<p>Text is not always handled correctly, it may select the wrong font especially if characters have multiple fonts in the font list.</p>
+</li>
+<li>
+<p>Uniform transparency for images and other SVG elements that are converted into a raster graphic are not drawn properly in PDF. The image is opaque.</p>
+</li>
+</ul>
+<h3 id="tiff">TIFF</h3>
+<p>FOP can embed TIFF images without decompression into PDF, PostScript and AFP if they have either CCITT T.4, CCITT T.6, or JPEG compression. Otherwise, a TIFF-capable Image I/O codec is necessary for decoding the image.</p>
+<p>There may be some limitation concerning images in the CMYK color space.</p>
+<h3 id="wmf">WMF</h3>
+<p>Windows Metafiles (WMF) are supported through classes in <a href="http://xmlgraphics.apache.org/batik/">Apache Batik</a>. At the moment, support for this format is experimental and may not always work as expected.</p>
+<h2 id="resolution">Graphics Resolution</h2>
+<p>Some bitmapped image file formats store a dots-per-inch (dpi) or other resolution values. FOP tries to use this resolution information whenever possible to determine the image's intrinsic size. This size is used during the layout process when it is not superseded by an explicit size on fo:external-graphic (content-width and content-height properties).</p>
+<p>Please note that not all images contain resolution information. If it's not available the source resolution set on the FopFactory (or through the user configuration XML) is used. The default here is 72 dpi.</p>
+<p>Bitmap images are generally embedded into the output format at their original resolution (as is). No resampling of the image is performed. Explicit resampling is on our wishlist, but hasn't been implemented, yet. Bitmaps included in SVG graphics may be resampled to the resolution specified in the "target resolution" setting in the <a href="configuration.html">configuration</a> if SVG filters are applied. This can be used as a work-around to resample images in FO documents.</p>
+<h2 id="page-selection">Page selection for multi-page formats</h2>
+<p>Some image formats such as TIFF support multiple pages/sub-images per file. You can select a particular page using a special URI fragment in the form: <uri>#page=<nr> (for example: <code>http://localhost/images/myimage.tiff#page=3</code>). This feature is only available if the ImageLoaderImageIO is the chosen image loader (this may require disabling or downgrading, by awarding it a penalty, the ImageLoaderRawCCITTFax image loader).</p>
+<h2 id="caching">Image caching</h2>
+<p>FOP caches images between runs. There is one cache per FopFactory instance. The URI is used as a key to identify images which means that when a particular URI appears again, the image is taken from the cache. If you have a servlet that generates a different image each time it is called with the same URI you need to use a constantly changing dummy parameter on the URI to avoid caching.</p>
+<p>The image cache has been improved considerably in the redesigned code. Therefore, resetting the image cache should be a thing of the past. If you still experience OutOfMemoryErrors, please notify us.</p>
+<p>If all else fails, the image cache can be cleared like this: <code>fopFactory.getImageManager().getCache().clearCache();</code></p></div>
+ </div>
+
+ <div class="clear"></div>
+
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+ <div class="copyright">
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+ Copyright © 2013 The Apache Software Foundation, Licensed under
+ the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.
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