# Appendix package option to force page break before appendices

Instead of manually putting a \newpage before \begin{appendices}, how can I tell the appendix package to do this ?

If you have a chaptered document class, this would be the default behaviour. In documents with top level structure section there is no way to tell the appendix package to insert a page break. That is because sections usually do not start new pages. So you need to manually add a \clearpage.

The etoolbox package provides commands for inserting commands around/within environments. I've included some related (commented) commands you may find useful.

\documentclass{article}

\usepackage{appendix}
\usepackage{etoolbox}

% Inserts \clearpage before \begin{appendices}
\BeforeBeginEnvironment{appendices}{\clearpage}
% Inserts \clearpage after \end{appendices}
%\AfterEndEnvironment{appendices}{\clearpage}

% Inserts \clearpage before every \section within appendices environment
%\AtBeginEnvironment{appendices}{\pretocmd{\section}{\clearpage}{}{}}{}

\begin{document}
\section{Pre1}
\section{Pre2}

\begin{appendices}
\section{App1}
\section{App2}
\end{appendices}

\section{Post1}
\section{Post2}
\end{document}