Krdytkyu

Let's suppose I'd like to divert the navigation symbols template (e.g. in order replace them by the frame numbers, see this bug report ;) I would be facing troubles regarding the font size/position, depending on regular/plain frames, as shown by the following MCE.

How could I get rid of these troubles?

documentclass{beamer}

usetheme{PaloAlto}

setbeamertemplate{navigation symbols}{insertframenumber/inserttotalframenumber}

begin{document}

begin{frame}

  frametitle{A regular frame}

end{frame}

begin{frame}[plain]

  frametitle{A plain frame}

end{frame}

end{document}

The problem is that there is no special font size set in your redefined navigation symbols template. So the fontsize of whatever element was typeset before is used. Normally the footline comes before, but on plain frames there is no footline.

As a workaround you can explicitly set the font size:

documentclass{beamer}



setbeamertemplate{navigation symbols}{Tinyinsertframenumber/inserttotalframenumber}



begin{document}

begin{frame}

  frametitle{A regular frame}

end{frame}



begin{frame}

  frametitle{A plain frame}

end{frame}

end{document}

Brute force solution and total overkill: use tikz and position the pagenumber relative to the page

documentclass{beamer}

usetheme{PaloAlto}

usepackage{tikz}



setbeamertemplate{navigation symbols}{%

    begin{tikzpicture}[remember picture, overlay]

        node[xshift=-0.4cm,yshift=0.2cm] at (current page.south east) {tinyinsertframenumber/inserttotalframenumber};

    end{tikzpicture}}

begin{document}

begin{frame}

  frametitle{A regular frame}

end{frame}

begin{frame}[plain]

  frametitle{A plain frame}

end{frame}

end{document}