photobook/talks/20230225 - Presentation at Orlov's/hello-world.tex

\documentclass[a5paper]{book}
% make the page visible on a gray backdrop...
\usepackage{xcolor}
\usepackage{pagecolor}
\pagecolor{white}

\begin{document}

\LARGE
Hello World!\footnotemark[42]

\footnotetext[42]{From \LaTeX}

\end{document}