Customizer's Guide > Customizing PDF Publishing > Font Element > Simulation Element
  
Simulation Element
The <Simulation> elements can apply bold or italic simulation to fonts that are not specified in FontName, are not mapped in this configuration file, and do not have the specified font face available. It’s optional and can only be used once.
The <Simulation> element has the optional child elements Bold and Italics.
The <Simulation> element has no attributes.