\documentclass[11pt,oneside]{bidipresentation}
\usepackage{sidebarbidipres}
\usepackage{xepersian}
\begin{document}
\begin{plainslide}
\AddToShipoutPicture{%
\put(500,0){\reflectbox{\includegraphics[keepaspectratio=false,height=\paperheight ,width=31mm]{side.jpg}}}%
}
\AddToShipoutPicture{%
\put(300,0){\includegraphics[keepaspectratio=false,height=\paperheight ,width=31mm]{side.jpg}}%
}
\end{plainslide}
\end{document}