\documentclass{article}
%% Additional note from LLT: you don't need fontspec or xelatex for reledmac or reledpar to work. However, if your document _does_ involve different languages with different scripts/fonts (e.g. English and Greek or Arabic etc), then it's a good idea to use those packages -- see https://www.overleaf.com/read/wfdxqhcyyjxz for an example
%
% \usepackage{polyglossia}
% \usepackage{libertine}
% \setmainlanguage{english}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[series={},nocritical,noend,noeledsec,nofamiliar,noledgroup]{reledmac}
\usepackage{reledpar}
\begin{document}
\date{(taken from the reledmac documentation)}
\title{Setting Parallel Texts with reledpar}
\maketitle
\begin{abstract}
This file provides two minimal examples of typesetting parallel texts with reledmac plus reledpar.
The first minimal example is parallel typesetting in columns, the second one is parallel typesetting in pages.
\end{abstract}
\begin{pairs}
\begin{Leftside}
\beginnumbering
\pstart
Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph.
\pend
\pstart
Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph.
\pend
\endnumbering
\end{Leftside}
\begin{Rightside}
\beginnumbering
\pstart
Right side paragraph. Right side paragraph. Right side paragraph. Right side paragraph.
\pend
\pstart
Other right side paragraph. Other right side paragraph. Other right side paragraph. Other right side paragraph. Other right side paragraph. Other right side paragraph. Other right side paragraph.
\pend
\endnumbering
\end{Rightside}
\end{pairs}
\Columns
\begin{pages}
\begin{Leftside}
\beginnumbering
\pstart
Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph. Left side paragraph.
\pend
\pstart
Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph. Other left side paragraph.
\pend
\endnumbering
\end{Leftside}
\begin{Rightside}
\beginnumbering
\pstart
Right side paragraph. Right side paragraph. Right side paragraph. Right side paragraph.
\pend
\pstart
Other right side paragraph. Other right side paragraph. Other right side paragraph. Other right side paragraph. Other right side paragraph. Other right side paragraph. Other right side paragraph.
\pend
\endnumbering
\end{Rightside}
\end{pages}
\Pages
\end{document}
