Publishing Engine Programmer's Guide > PTC Arbortext Publishing > Content Compilers > The Arbortext Formatting Engine and PTC Advanced Print Publisher > PTC Advanced Print Publisher
  
PTC Advanced Print Publisher
The PTC Advanced Print Publisher is invoked internally by the publishing framework. There are no ACL commands to run it directly. It uses a .3f template specification to translate an open XML or SGML document directly to Postscript or PDF. To support previewing, Arbortext Editor may display the PDF output using a PDF viewer such as Adobe Reader. When Arbortext Editor is using the Arbortext PE server for publishing, PTC Advanced Print Publisher always runs on the Arbortext PE server.