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I am using a picture as a background for beamer slides. I would like to have my name and page numbers at the bottom of the slide. I do not like the bottom bar to cover the background image. Is it possible to make the bottom bar in transparent colour with names and page numbers visible?

These are themes I am using in the example:


The example slide

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up vote 5 down vote accepted

Here is a solution based on the redefinition of the footline, and the use of \pgfsetfillopacity{<value>} (0=transparent, 1=opaque).



    \pgfsetfillopacity{0}\begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,center]{author in head/foot}%
      \usebeamerfont{author in head/foot}\pgfsetfillopacity{1}\insertshortauthor~~(\insertshortinstitute)
    \pgfsetfillopacity{0}\begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,center]{title in head/foot}%
      \usebeamerfont{title in head/foot}\pgfsetfillopacity{1}\insertshorttitle
    \pgfsetfillopacity{0}\begin{beamercolorbox}[wd=.333333\paperwidth,ht=2.25ex,dp=1ex,right]{date in head/foot}%
      \usebeamerfont{date in head/foot}\pgfsetfillopacity{1}\insertshortdate{}\hspace*{2em}
      \insertframenumber{} / \inserttotalframenumber\hspace*{2ex}





Output Obviously you will have to add your background picture but the grey bars are gone and they should be transparent!


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