# Interaction between pdflscape, multicols and \twocolumn

Testing the following source code:

\documentclass[10pt]{article}
\usepackage[a4paper,margin=1cm]{geometry}
\usepackage{multicol}
\usepackage{pdflscape}
\usepackage{lipsum}

\begin{document}

\begin{landscape}
\begin{multicols}{2}
\textbf{This code block works as I would expect.}\\
\\
\\
\lipsum
\end{multicols}

\twocolumn
\textbf{This code block doesn't works as I would expect.}\\
\\
\\
\lipsum
\end{landscape}

\end{document}


There are some layout differences:

• How you explain this difference?
• How you can make the output of second code block as the first one?
• Why don't you use multicol inside the landscape too? – Ulrike Fischer Jan 9 '19 at 16:48
• I use it. But I would like to know if it is possible to implement the other way too. Ops, I just corrected the question. – BnG Jan 9 '19 at 16:50
• Hopefully your real document doesn't have consecutive \\  – David Carlisle Jan 9 '19 at 22:19
• No :-). It's an example. – BnG Jan 9 '19 at 23:11

The landscape environment from the lscape package (or its pdflscape extension) needs to hook in to LaTeX's page breaking routine to rotate each page. It simply does not support two column mode, which uses a different page breaking logic