# LaTeX beamer presentation-package 16:9 aspect ratio?

I'm programming a presentation in LaTeX using the beamer class.

However, it defaults to 4:3 aspect ratio slides, while everything I use is 16:9. Is there an easy way to change this using a command or two?

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## migrated from stackoverflow.comMar 27 '11 at 9:10

This question came from our site for professional and enthusiast programmers.

note that 16:10 is a common screen / beamer format. default in most recent mac hardware. value to pass to the aspectratiooption is 1610 –  meduz Apr 16 at 12:28

According to A Beamer Quickstart, "The size of a Beamer slide is 128mm by 96mm. These dimensions are fixed and should not be changed."

However, there is a beamerposter package which allows a 16:9 ratio.

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Yes, that's better than my \setbeamersize{...} hack! +1 –  Bart Kiers Apr 9 '10 at 7:02
That part of the documentation is actually out of date. –  Matthew Leingang May 17 '11 at 12:29

As already mentioned, the size is fixed to a ration of 4:3. However, you can decrease the right and left margin like this:

\documentclass{beamer}

\usepackage{beamerthemesplit}

\setbeamersize{text margin left=0.1em}  % <- like this
\setbeamersize{text margin right=0.1em} % <- like this

\title{The title of this presentation}
\author{Bart Kiers}
\date{\today}

\begin{document}

\frame{\titlepage}

\end{document}


which will make your slides look like:

EDIT:

And as neilfws mentioned, try the beamerposter package.

The following:

\documentclass{beamer}

\usepackage{beamerthemesplit}
\usepackage[orientation=landscape,size=custom,width=16,height=9,scale=0.5,debug]{beamerposter}

\title{The title of this presentation}
\author{Bart Kiers}
\date{\today}

\begin{document}

\frame{\titlepage}

\end{document}


produces:

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It looks like current version of beamer supports aspectratio option.

\documentclass[aspectratio=169]{beamer}


should do exactly that. Other possible values are: 1610, 149, 54, 43 and 32.

By default, it is to 128mm by 96mm(4:3).

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Should this also work if I have a custom beamer theme (inner,outer,etc..)? –  math Oct 25 '11 at 9:37
I am sorry, now it works! My beamer version was 3.0.7 and with 3.10.1 it works now even with a custom style! Great! –  math Oct 25 '11 at 10:01