[Tex/LaTex] How to remove footnote marker (number) in Beamer

beamer

Hi This is my minimal working environment:

\documentclass[compress]{beamer}
\usepackage[version=4]{mhchem}
\usepackage{graphicx}
\begin{document}
\section{Introduction}
\subsection{Germanium Catenates}
\begin{frame}[t]{\ce{Ge-F} Containing Compounds} \vspace{20pt}

\begin{itemize}

\item There are 134 compounds in total that contain \ce{Ge-F} bond.

\begin{figure}[ht]

\includegraphics[width=0.4\textwidth]{Figures/Images1.png}
\end{figure}


\end{itemize}
\footnotetext[1]{{\tiny A test footnote in the first column}}

\end{frame}

\end{document}

How can I remove that marker number?

It looks like this:

enter image description here

Also, when I used this solution it ended up like this:

enter image description here

Thanks in advance.

Best Answer

As an alternative to the great answer from @marmot, you could also use beamers own mechanism to change the appearance of the footnote.

To change the size of the text:

\setbeamerfont{footnote}{size=\tiny}

To get an unnumbered footnote:

\setbeamertemplate{footnote}{%
  \parindent 1em\noindent%
  \raggedright
  \insertfootnotetext\par%
}

Both of these settings can either be applied globally (like in the example below) or locally for only one footnote if used inside a group.

Please also note that you don't need any floating specifier for your figure environment in a class that does not have floats.

\documentclass[compress]{beamer}

\usepackage[version=4]{mhchem}

\setbeamerfont{footnote}{size=\tiny}

\setbeamertemplate{footnote}{%
  \parindent 1em\noindent%
  \raggedright
  \insertfootnotetext\par%
}

\begin{document}
\section{Introduction}
\subsection{Germanium Catenates}
\begin{frame}[t]{\ce{Ge-F} Containing Compounds} \vspace{20pt}

\begin{itemize}

\item There are 134 compounds in total that contain \ce{Ge-F} bond.

\begin{figure}
\includegraphics[width=0.4\textwidth]{example-image-duck}
\end{figure}


\end{itemize}

\footnotetext{A test footnote in the first column}

\end{frame}

\end{document}
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