\documentclass{article} \usepackage[T1]{fontenc} \usepackage[osf,p]{libertinus} \usepackage{microtype} \usepackage[pdfusetitle,hidelinks]{hyperref} \usepackage[english]{babel} \usepackage[showframe]{geometry} \usepackage[series={},nocritical,noend,noeledsec,nofamiliar,noledgroup]{reledmac} \usepackage{reledpar} \linenummargin{left} \setlength{\Lcolwidth}{.44\textwidth} \setlength{\Rcolwidth}{.44\textwidth} \setlength{\columnrulewidth}{0.4pt} \begin{document} \title{\texttt{\textbackslash Columns} alignment} \date{} \maketitle \begin{abstract} This file provides example of setting the alignment of \texttt{\textbackslash{}Columns} on the page: right (default), left or center. The column are 0.44\texttt{\textbackslash{}textwidth}, and we use \texttt{\textbackslash{}columnsposition}. We also provide one last example, showing how we can manipulate space between columns, by redefining \texttt{\textbackslash{}beforecolumnseparator} and \texttt{\textbackslash{}aftercolumnseparator}. \end{abstract} \section{Right (default)} \columnsposition{R} \begin{pairs} \begin{Leftside} \beginnumbering \pstart Left side left side left side left side left side left side left side left side left side left side \pend \endnumbering \end{Leftside} \begin{Rightside} \beginnumbering \pstart Right side right side right side right side right side right side right side right side right side right side \pend \endnumbering \end{Rightside} \end{pairs} \Columns \section{Left} \columnsposition{L} \begin{pairs} \begin{Leftside} \beginnumbering \pstart Left side left side left side left side left side left side left side left side left side left side \pend \endnumbering \end{Leftside} \begin{Rightside} \beginnumbering \pstart Right side right side right side right side right side right side right side right side right side right side \pend \endnumbering \end{Rightside} \end{pairs} \Columns \section{Center} \columnsposition{C} \begin{pairs} \begin{Leftside} \beginnumbering \pstart Left side left side left side left side left side left side left side left side left side left side \pend \endnumbering \end{Leftside} \begin{Rightside} \beginnumbering \pstart Right side right side right side right side right side right side right side right side right side right side \pend \endnumbering \end{Rightside} \end{pairs} \Columns \section{Center, setting space between columns} Now, we set the spaces between columns, to have all the line occupied. \setlength{\beforecolumnseparator}{0.06\textwidth} \setlength{\aftercolumnseparator}{0.06\textwidth} \vspace{\baselineskip} \begin{pairs} \begin{Leftside} \beginnumbering \pstart Left side left side left side left side left side left side left side left side left side left side \pend \endnumbering \end{Leftside} \begin{Rightside} \beginnumbering \pstart Right side right side right side right side right side right side right side right side right side right side \pend \endnumbering \end{Rightside} \end{pairs} \Columns \end{document}