Background image for frame title

Question

Using beamer, how can I insert a background image under the title of each frame? I could insert an image but the result was that the title disappeared because the image is over it. Any ideas?

Answer 1

You can use the \addtobeamertemplate command to add the image to every frame in which the \frametitle command is used. You only add the image to the frametitle template. A simple example using the textpos package to control the placement of the image:

\documentclass{beamer}
\usepackage{textpos}

\addtobeamertemplate{frametitle}{
\begin{textblock*}{\paperwidth}(-10pt,0pt)
\includegraphics[width=.9\paperwidth,height=1cm]{onebit_29}
\end{textblock*}
}

\begin{document}

\begin{frame}
\frametitle{Some long title to overlap the included image}
Test
\end{frame}

\end{document}

Answer 2

You could add the image as part of the frame title argument, e.g. using

\begin{frame}
    \frametitle{\rlap{\raisebox{-\dp\strutbox}{\includegraphics[height=\baselineskip]{image}}}Your frame title}
     ...

\end{frame}

(The \frametitle is optional in this case.)

This inserts and scales a background image under the frame title. You might also want to add the option width=\textwidth (or a similar width).

Alternatively try \adjustbox{bgimage=<image>}{Your frame title} from the adjustbox package instead of the frame title alone.