\documentclass[a5paper,11pt]{article}
\usepackage[T1]{fontenc}
\usepackage[osf,p]{libertinus}
\usepackage{microtype}
\usepackage[pdfusetitle,hidelinks]{hyperref}
\usepackage[english]{babel}

\usepackage[series={},nocritical,noend,noeledsec,nofamiliar]{reledmac}
\usepackage[sameparallelpagenumber]{reledpar}

\begin{document}
\date{}
\author{}
\title{Same page number on left and right sides}

\maketitle

\begin{abstract}
  This file provides example of use of \verb+sameparallelpagenumber+ option of \emph{eledpar}.
 Before \verb+\Pages+, the pages are normally numbered.
 When parallel pages are typeset, the number is the same on left and right side.
 After that, page number continues in the normal way.

\end{abstract}
\newpage
A new normal page
\newpage
A new normal page, again

\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

                        \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

                        \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

                        \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

                        \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


                        \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

                        \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


                        \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
            \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            \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            \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            \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            \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            \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            \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            \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            \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
                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

                        \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

                        \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

                        \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

                        \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


                        \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

                        \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


                        \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
            \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            \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            \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            \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            \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            \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            \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            \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            \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
                \label{toto}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{Rightside}

\end{pages}
\Pages

And now, we continue with normal pages.

\newpage

And again a new page.

\end{document}