fop-core/src/test/resources/org/apache/fop/configuration/sample_config.xml

<fop version="1.0">

  <renderers>
    <renderer mime="application/pdf">
      <fonts> 
        <auto-detect/>
      </fonts>
    </renderer>
  </renderers>

  <!-- A substitution can map a font family to another. -->
  <fonts>
    <substitutions>  
        <substitution>
            <from font-family='courierNew' font-style='normal' font-weight='400'/>   <to font-family='Courier New'/> 
         </substitution> 
     </substitutions>
  </fonts>

</fop>