prash (imported from SE)
I intend to record video lectures. I am using Beamer for making the slides. How can I keep a rectangle space with aspect ratio of 4:3 (actual resolution is 640x480) on any corner so that it remains blank and all the other content simply wraps around it on all slides. In this rectangle area, I will have my video feed (640x480) on and the screen recorder will record my video+audio and the slides on an 1920x1080 resolution. The rectangular area should remain blank (without any border) since the same slides will be distributed.

I have added the rectangle space in the image below as I would like to have it. I have no idea where to start searching for a solution. Can you give me some pointers or suggestions? [![rectangle area should remain untouched.][1]][1]

[1]: https://i.stack.imgur.com/PTYwm.jpg

samcarter
For simple cases like text etc. you could use the shapepar package to produce the desired cutout.


\documentclass{beamer}

\usepackage{lipsum}
\usepackage{shapepar}
\setlength{\cutoutsep}{5cm}

\setbeamertemplate{logo}{\parbox{\paperwidth}{\includegraphics[width=4cm,height=3cm]{example-image-duck}}}

\newcommand{\webcam}{\cutout{l}(-1cm,.9\paperheight)\shapepar{\squareshape}\textcolor{bg}{.}\par}

\begin{document}

\begin{frame}
\webcam
\lipsum*[1-2]
\end{frame}

\begin{frame}
\frametitle{title}
\webcam
\lipsum*[1-2]
\end{frame}

\end{document}


For more complicate frames with columns etc. some manual fine tuning will be necessary.

*(I would prefer if this answer would not be copied to tex.se)*