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From: Axel Berger <Spam@Berger-Odenthal.De>
Newsgroups: comp.text.tex
Subject: Re: Setting Beamer aspect ratio / screen size
Date: Sat, 05 Apr 2025 20:53:02 +0200
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Robert Heller wrote:
> How do I set the Beamer aspect ratio / screen size?

RTFM: <Ctrl><F><"aspectratio"><Enter>

In my old version it's chapter 8.3

The defined ratios are:  aspectratio=3D54, %1610,169,149,54,_43,32

The papersizes for beamer are defined in mm. This results in lots of
rescaling. For that reason I have the following in my private style file
always loaded last:

---------------------------------------------------------------
\ifFAB@aspect%
  \ifdim\beamer@paperwidth=3D16.00cm%
    \setlength{\beamer@paperwidth}{6.4in}%
    \ifdim\beamer@paperheight=3D10.00cm%
      \setlength{\beamer@paperheight}{4in}%
    \else\ifdim\beamer@paperheight=3D9.00cm%
      \setlength{\beamer@paperheight}{3.6in}%
    \fi\fi%
  \else\ifdim\beamer@paperwidth=3D14.00cm%
    \setlength{\beamer@paperwidth}{5.6in}%
    \setlength{\beamer@paperheight}{3.6in}%
  \else\ifdim\beamer@paperwidth=3D13.50cm%
    \setlength{\beamer@paperwidth}{5.4in}%
    \setlength{\beamer@paperheight}{3.6in}%
  \else\ifdim\beamer@paperwidth=3D12.80cm%
    \setlength{\beamer@paperwidth}{5.12in}%
    \setlength{\beamer@paperheight}{3.84in}%
  \else\ifdim\beamer@paperwidth=3D12.50cm%
    \setlength{\beamer@paperwidth}{5.6in}%
    \setlength{\beamer@paperheight}{4.48in}%
  \fi\fi\fi\fi\fi
  \geometry{papersize=3D{\beamer@paperwidth,\beamer@paperheight}}
\fi}
---------------------------------------------------------------

All frame sizes now have round numbers in inches and with common
projector resolutions come out as 200 dpi. I believe this helps show
better images.


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