Re: Setting Beamer aspect ratio / screen size

On 05/04/2025 19:53, Axel Berger wrote:

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=54, %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:

I asked the maintainers some years ago if they could add '141' as an aspectratio option, to support A-sizes (eg A5 = 14.85cm × 10.50cm), which they kindly did.
This provided a shape that fits most modern wide-screen projectors *reasonably* if not optimally, without the need to recompile the slides on-the-fly at a conference to suit the oddball projectors that hotels and conference centres seemed to provide. It also ensures that a PDF print version of the slides will fit the paper in most printers (outside the USA). That option still appears to be there in beamer.cls
Peter