beamer: column + babel + manual hyphenation does not work as expected

Question

• I have a beamer slide with a footnote.
• I use the columns environment.
• German has long words, e.g. Teilnahmeberechtigt (= "eligible") as seen in the example. Therefore I provide manual hyphenation as in Teil"-nah"-me"-be"-rech"-tigt.
• Problem: Still, the word is not split between two lines, any ideas?
• I hope it is ok that the MWE contains the actual German text. This makes it easier for me to reproduce the issue.

Bonus question: Where can I find a canonical list of available shorthands (e.g. "=) in babel? So far, I always go back to this nice overview (in German).

---

\documentclass{beamer}
\usepackage[ngerman]{babel}
\begin{document}
\begin{frame}
\frametitle{Frame Title}
\begin{columns}
\column[T]{0.45\textwidth}
Als schönen Abschluss, habe ich am Anfang Februar 2023 den \alert{ersten Preis} bei den Woven Planet 2022 Invention Awards gewonnen\footnote[]{Zusammen mit den \alert{zwei Mit"-er"-fin"-dern} Julia Pralle und Hi"-ro"-shi Yasuda (TRI). Teil"-nah"-me"-be"-rech"-tigt waren ca. 8.500 Mitarbeiter.}, siehe xxx.
\column[T]{0.55\textwidth}
\centering
\includegraphics[width = 0.85\textwidth]{example-image-a}
\end{columns}
\end{frame}
\end{document}

Related

• Hyphenation in Beamer Presentations
• beamer: Allow hyphenation by default (paragraph, itemize, footnotes, description) (follow-up)

Answer 1

It is setting the footnote \raggedright so even the small hyphenpenalty is avoided compared to a penalty-free fil stretch.

\documentclass{beamer}
\usepackage[ngerman]{babel}
\begin{document}
\begin{frame}
\frametitle{Frame Title}
\begin{columns}
\column[T]{0.45\textwidth}
Als schönen Abschluss, habe ich am Anfang Februar 2023 den \alert{ersten Preis} bei den Woven Planet 2022 Invention Awards gewonnen\footnote[]{%
\rightskip=0pt
Zusammen mit den \alert{zwei Mit"-er"-fin"-dern} Julia Pralle und Hi"-ro"-shi Yasuda (TRI). Teil"-nah"-me"-be"-rech"-tigt waren ca. 8.500 Mitarbeiter.}, siehe xxx.
\column[T]{0.55\textwidth}
\centering
\includegraphics[width = 0.85\textwidth]{example-image-a}
\end{columns}
\end{frame}
\end{document}