[Tex/LaTex] Properly Positioning text in beamer using textpos

beamerpositioningtext manipulationtextpos

I am using textpos to control the position of text in a beamer frame.
What I want to do, is to place some text on top of an image.
I am using the package in absolute mode and I want to place the text on the top-right corner of the frame.

My code is the following

\documentclass{beamer}
\usepackage{graphicx}
\usepackage[absolute]{textpos}
\begin{document}
\begin{frame}
 \includegraphics[width=\textwidth]{BeamONAmp}
 \setlength{\TPHorizModule}{\textwidth}
 \setlength{\TPVertModule}{\textwidth}
 \begin{textblock}{0.5}(0.001,0.001)
  Test
 \end{textblock}
\end{frame}
\end{document}

My output is the following

enter image description here

Any idea on how to properly control the position of the text?

Best Answer

If you want to use textpos with beamer and with absolute positioning, you have to use the option overlay, otherwise the frame background obscures the textblock.

MWE:

\documentclass{beamer}
\usepackage[absolute,overlay]{textpos}
\begin{document}
\begin{frame}
 \includegraphics[width=\textwidth]{example-image}
 \setlength{\TPHorizModule}{\textwidth}
 \setlength{\TPVertModule}{\textwidth}
 \begin{textblock}{0.5}(0.001,0.001)
  Test
 \end{textblock}
\end{frame}
\end{document}

Output

enter image description here

Excerpt from the documentation:

[overlay] When using the absolute-position mode, the textblocks are placed under any other text on the page. This is normally what you want, but if you have page contents, and they have something which obscures the textblocks (for example, a block of opaque colour), then the positioned textboxes disappear. In this case, specify the option [overlay] , to request that the positioned blocks of text overlay any other page contents, rather than being overlaid.

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