se/SE/stuff/dita-ot-2.3.3/plugins/org.dita.pdf2.axf/xsl/fo/root-processing_axf.xsl

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:xs="http://www.w3.org/2001/XMLSchema"
                xmlns:fo="http://www.w3.org/1999/XSL/Format"
                xmlns:axf="http://www.antennahouse.com/names/XSL/Extensions"
                xmlns:dita-ot="http://dita-ot.sourceforge.net/ns/201007/dita-ot"
                version="2.0" exclude-result-prefixes="dita-ot xs">
    
  <xsl:template name="createMetadata">
    <xsl:variable name="title" as="xs:string?">
      <xsl:apply-templates select="." mode="dita-ot:title-metadata"/>
    </xsl:variable>
    <xsl:if test="exists($title)">
      <axf:document-info name="document-title" value="{$title}"/>
    </xsl:if>
    <!--axf:document-info name="subject" value="The document subject"/-->
    <xsl:variable name="author" as="xs:string?">
      <xsl:apply-templates select="." mode="dita-ot:author-metadata"/>
    </xsl:variable>
    <xsl:if test="exists($author)">
      <axf:document-info name="author" value="{$author}"/>
    </xsl:if>
    <xsl:variable name="keywords" as="xs:string*">
      <xsl:apply-templates select="." mode="dita-ot:keywords-metadata"/>
    </xsl:variable>
    <xsl:if test="exists($keywords)">
      <axf:document-info name="keywords">
        <xsl:attribute name="value">
          <xsl:value-of select="$keywords" separator=", "/>
        </xsl:attribute>
      </axf:document-info>
    </xsl:if>
    <xsl:variable name="subject" as="xs:string?">
      <xsl:apply-templates select="." mode="dita-ot:subject-metadata"/>
    </xsl:variable>
    <xsl:if test="exists($subject)">
      <axf:document-info name="subject" value="{$subject}"/>
    </xsl:if>
  </xsl:template>

</xsl:stylesheet>