main.tex

\documentclass{beamer}
\usepackage{unisa}

\title{Unofficial Beamer Template}
\author{Saleh Jamali Golzar}
\date{\today}

\begin{document}
    \titlebackground{campus.jpg}

    \makesection{Section 1}
    \footertext{Important ref number 1.}
    \begin{frame}{Title Sec 1}
        Dont remove the pictures. Keep them at the root dir.
        \begin{itemize}
            \item Foo
            \item Is
            \item Bar.
        \end{itemize}
    \end{frame}


    \makesection{Section 2}
    \footertext{Important ref number 2.}
    \begin{frame}{Title Sec 2}
        This is the content.
        \begin{itemize}
            \item Bar
            \item Is
            \item Foo.
        \end{itemize}
    \end{frame}

    \footertext{}
    \begin{frame}{Last slide, no footnote.}
        Did you notice? No section (full) page. No footnote either!
    \end{frame}

\end{document}