I wish to be able to switch between a centred pdf layout and offset layout for printing and binding.
Using the "oneside" and "twoside" document class options seems to be best for this.
However, when using the following geometry options:
\documentclass[11pt,twoside]{book}
\usepackage{lipsum}
\usepackage{geometry}
\geometry{a4paper,
textwidth=146.5mm,
hcentering,
top=0.6in,
bottom=0.8in,
headheight=20pt,
headsep=0.25in,
foot=9pt,
footskip=0.3in,
bindingoffset=0.5in,
includeheadfoot}
\title{\bf An MWE}
\author{for SO}
\date{\today}
\begin{document}
\frontmatter
\maketitle
\lipsum[1-2]
\lipsum[1-6]
\end{document}
However, when in oneside mode the offset is always applied on the left, resulting in an ugly layout.
I do not want to have to fiddle with the geometry options when changing the documentclass argument, as that seems prone to a mix up.