I’ve just learned about a feature of FOP which allows you to enable duplex
printing when generating PCL output from FO input:
https://xmlgraphics.apache.org/fop/2.2/output.html#pcl-duplex-mode
Unfortunately, grepping the DBX FO XSL files in the version of the stylesheets
packaged for my OS
Release of XMLmind XML Editor 7.5
XMLmind XHTML Editor (and of course its superset: XMLmind XML Editor)
can now be used to turn a set of HTML pages into a self-contained ebook
(EPUB, Web Help, PDF, DOCX, etc). More information in "Creating an ebook
out of a set of HTML pages"[1].
This new