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Plugins: Latex

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danfickle edited this page Jun 29, 2019 · 1 revision
  • Uses fork of SnuggleTex library to convert basic Latex to XHTML, MathML and CSS. The SnuggleTex library is not undergoing active development.
  • Sizing: Can be sized using CSS like any other element.
  • Fonts: See note about fonts for MathML support, otherwise just uses fonts as defined for the elements it generates.
  • Security: Trusted content only as it generates arbitrary XML and MathML.
  • MathML support must be registered separately in the builder (see below).
  • Supported Latex
  • You will see warnings in log about unsupported CSS properties that SnuggleTex produces. These mostly don't change the appearance of rendered content.
  • PR Link. Thanks @rototor.
  • Testing: MathML produces different results on different JDKs so is not suitable for automatic visual regression testing. Latex without MathML seems to test OK.
  • Below is a very simple sample that does not require math STIX fonts.
  	<dependency>
  		<!-- Latex support plugin - also pulls in MathML support plugin. -->
  		<groupId>com.openhtmltopdf</groupId>
  		<artifactId>openhtmltopdf-latex-support</artifactId>
  		<version>${openhtml.version}</version>
  	</dependency>
public static void main(String... args) throws Exception { 
        try (OutputStream os = new FileOutputStream("/Users/me/Documents/pdf-issues/output/latex.pdf")) {
            PdfRendererBuilder builder = new PdfRendererBuilder();
            builder.withUri("file:///Users/me/Documents/pdf-issues/latex.html");
            builder.useFastMode();
            builder.toStream(os);
            builder.addDOMMutator(LaTeXDOMMutator.INSTANCE); // Converts Latex to XHTML and MathML
            builder.useMathMLDrawer(new MathMLDrawer());  // Renders MathML, not needed if you don't use math.
            builder.run();
        }
}
<html>
<head>
<style>
@font-face {
  src: url(fonts/Simple-Font.ttf);
  font-family: 'MyFont';
  font-weight: normal;
}
@page {
  size: 10cm 30cm;
  margin: 0;
}
body {
  margin: 0;
  font-family: 'MyFont';
  font-size: 15px;
}
latex {
  display: block;
  width: 100%;
  margin: 2px;
  padding: 5px;
  page-break-inside: avoid;
}
math {
  font-family: 'MyFont'; /* Probably want to use STIX pack instead. */
}
</style>
</head>
<body>
<latex><![CDATA[
  Simple list:
  \begin{itemize}
  \item First item
  \item Second item
  \end{itemize}
  ]]>
</latex>

<latex><![CDATA[
Math:
$ \frac{x+1}{3y} $
$ x^{2^{y-z}} $
 ]]>
</latex>

</body>
</html>

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