# How to display the footnote in the bottom of the slide while using \columns?

I am using \columns in beamer to show two pictures. After I added \footnote{ExampleText} after captions, the ExampleTest just appear in each column. Now I want to show all of the ExampleText in the bottom of the slide instead of each column, how can I do this?

MWE:

\documentclass{beamer}
\usepackage{graphicx}
\begin{document}
\begin{frame}
\begin{columns}
\begin{column}{.5\textwidth}
\includegraphics{img1}\footnote{f2}
\end{column}
\begin{column}{.5\textwidth}
\includegraphics{img2}\footnote{f1}
\end{column}
\end{columns}
\end{frame}
\end{document}

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You can use \footnotemark, \footnotetext{<text>}; a little example:

\documentclass{beamer}

\begin{document}

\begin{frame}
\begin{columns}
\column{.5\textwidth}
Some text for the first column and a test footnote\footnotemark
\column{.5\textwidth}
Some text for the second column and a test footnote\footnotemark
\end{columns}
\footnotetext[1]{A test footnote in the first column}
\footnotetext[2]{A test footnote in the second column}
\end{frame}

\end{document}


In a comment it has been asked how to use the same footnote text for two footnotes, one in each column; here's a possibility:

\documentclass{beamer}

\begin{document}

\begin{frame}
\begin{columns}
\column{.5\textwidth}
Some text for the first column and a test footnote\footnotemark
\column{.5\textwidth}
Some text for the second column and a test footnote\footnotemark[1]
\end{columns}
\footnotetext{A test footnote for both columns}
\end{frame}

\end{document}


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 If these two pictures share the same '\footnote,' how can I show one '\footnote' in the bottom? – Chuck Wang Dec 12 '12 at 4:40 @ChuckWang please see my updated answer. – Gonzalo Medina Dec 12 '12 at 16:43 Thanks for your reply. – Chuck Wang Dec 13 '12 at 6:51

At first I removed this answer because I wasn't sure what you wanted. You might want to change the MWE above, I don't know. Anyway, this works for me to give a single footnote. Just call the footnote after explicitly closing the columns.

\documentclass{beamer}
\usepackage{graphicx}
\begin{document}
\begin{frame}
\begin{columns}
\begin{column}{.5\textwidth}
\includegraphics{img1}
\end{column}
\begin{column}{.5\textwidth}
\includegraphics{img2}
\end{column}
\end{columns}
\end{frame}
\end{document}


Works for me. What did I miss?

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The most consistent way to do this is to keep the footnotes as they are but supply the [frame] option to them.

\documentclass{beamer}

\begin{document}

\begin{frame}
\begin{columns}
\column{.5\textwidth}
Some text for the first column and a test footnote\footnote[frame]{A test footnote in the first column}
\column{.5\textwidth}
Some text for the second column and a test footnote\footnote[frame]{A test footnote in the second column}
\end{columns}
\end{frame}

\end{document}


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