The LaTeX beamer class is optimized for presentations using a video projector (thus the [denglish](http://en.wikipedia.org/wiki/Denglish) term beamer). The aspect ratio is 4:3, and the page size is small to exclude problems with ancient projectors. As a matter of fact, beamer class presentations should work with any pdf viewer and any video projector no matter the age of these soft- and hardware components. Can we, however, use the presentation also as a handout, or as a poster? And how? Easy: 😉 Here's the poster, %works together with option trans in documentclass \usepackage{pgfpages} \pgfpagesuselayout{resize to}[a4paper,landscape, border shrink=5mm] and here the handout: %works together with option handout in documentclass \usepackage{pgfpages} \pgfpagesuselayout{4 on 1}[a4paper, landscape, border shrink=5mm] An example for a handout: [](../images/beamerclass_handout-mode_90.webp)