Beamer really change paper size, and paperheight

Question

I'd like to change the beamer paper size, but the problem is that when I change it the frame of the main document goes out of the page, and has therefore a unusable paperheight. And because I'd like to use the paperheight to position my elements precisely, it's quite annoying...

\documentclass{beamer}
\geometry{showframe,paperwidth=297mm,paperheight=210mm,margin=5mm,nohead,nofoot,nomarginpar}
\setbeamertemplate{footline}[frame number]{}
\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{footline}{}
\setbeamertemplate{background canvas}{}

\begin{document}
This frame goes out of this document.
\end{document}

The top part is ok:

but not the bottom part:

Thank you !

Which is another reason I use pdfscreen and texpower instead of beamer. — John Kormylo, Oct 26 '17 at 13:40
maybe https://tex.stackexchange.com/questions/397395/beamer-page-scaling/397415#397415 could help — samcarter_is_at_topanswers.xyz, Oct 26 '17 at 14:20

score 5 · Answer 1 · answered Oct 26 '17 at 13:23

As the documentation says

you should refrain from changing the “paper size.”

You should take this warning seriously. beamer does a lot of manual calculations and settings and so changing the layout after the class can not be done with a simple \geometry call.

Use the 141 aspectratio instead. It leads to a 148.5mm by 105mm page size, which is exactly the half of your values.

Beamer really change paper size, and paperheight

1 Answers1