I'd like to get confirmation if the method I used to submit an already existing XSL-FO document to Arbortext Publishing Engine (APE) is valid: * I created a new custom doctype application that only contains the identity XSLT transform, with the goal of passing the FO markup as-is to the print/PDF/Postscript engine. The DTD I created just references (via parameter entity) the xsl-fo DTD included in the Arbortext distribution. * In my XSL-FO document, I include the doctype declaration that maps to my custom doctype application. * When invoking APE, I select PDF/Postscript output to get final rendered document. The primary goal is to have the simple ability to play with XSL-FO directly and test it against APE. The process seems to work (I do get output), but I need to know that I can trust that the output reflects the original FO I provided w/o it getting modified internally before the print/PDF/Postscript part is called. Thanks for any replies.