content/resources/pdf-config.xml

<xsl:stylesheet
  version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:fo="http://www.w3.org/1999/XSL/Format">

<xsl:attribute-set name="figure.graphics">
    <xsl:attribute name="content-width">scale-down-to-fit</xsl:attribute>
    <xsl:attribute name="content-height">scale-down-to-fit</xsl:attribute>
    <xsl:attribute name="width">100%</xsl:attribute>
    <xsl:attribute name="height">100%</xsl:attribute>
</xsl:attribute-set>

<xsl:attribute-set name="base.pre.style">
    <xsl:attribute name="font-family">monospace</xsl:attribute>
    <xsl:attribute name="wrap-option">no-wrap</xsl:attribute>
    <xsl:attribute name="keep-together">auto</xsl:attribute>
    <xsl:attribute name="white-space-collapse">false</xsl:attribute>
</xsl:attribute-set>

<xsl:attribute-set name="body.pre" use-attribute-sets="base.pre.style">
    <xsl:attribute name="font-size">9pt</xsl:attribute>
</xsl:attribute-set>

</xsl:stylesheet>