Appendices: Hyperref doesn't match table of contents

Question

On Adobe Acrobat Reader "Appendices" is on the same level like the individual appendix chapters. Is there any chance to change the Adobe representation so that it looks like in the table of contents ( = subordinate Chapter One and Two to "Appendices")?

MWE:

\documentclass[a4paper,12pt,parskip=half]{report}

\usepackage{hyperref}

\usepackage[toc,page]{appendix}
\renewcommand\appendixtocname{Appendices}
\renewcommand\appendixpagename{Appendices}
\let\appendixpagenameorig\appendixpagename

\begin{document}

  \tableofcontents

  \begin{appendices}
    \addtocontents{toc}{\protect\setcounter{tocdepth}{1}}
    \makeatletter
    \addtocontents{toc}{%
      \begingroup
      \let\protect\l@chapter\protect\l@section
      \let\protect\l@section\protect\l@subsection
    }
    \makeatother

    \chapter{Chapter One}
    \chapter{Chapter Two} 
  \end{appendices}
\end{document}

Answer 1

The whole trouble is because \chapter is used whereas appendices are sections in many cases, but it is possible to shift the bookmark level by changing toclevel@chapter etc by increasing by one.

\documentclass[a4paper,12pt,parskip=half]{report}

\usepackage[toc,page]{appendix}
\usepackage{etoolbox}    
\usepackage[bookmarksopen,bookmarksopenlevel=2]{hyperref}


\makeatletter

\apptocmd{\appendices}{%
  \renewcommand{\toclevel@chapter}{1}% Shift the chapter level to 1 ('section')
  \renewcommand{\toclevel@section}{\the\numexpr\toclevel@chapter+1}
  \renewcommand{\toclevel@subsection}{\the\numexpr\toclevel@section+1}
    \addtocontents{toc}{\protect\setcounter{tocdepth}{1}}
    \addtocontents{toc}{%
       \begingroup
       \let\protect\l@chapter\protect\l@section
       \let\protect\l@section\protect\l@subsection
     }%
   }{}{}


\AfterEndEnvironment{appendices}{%
  \addtocontents{toc}{\endgroup}%  Close the group
}

\makeatother

\renewcommand\appendixtocname{Appendices}
\renewcommand\appendixpagename{Appendices}
\let\appendixpagenameorig\appendixpagename

\begin{document}

  \tableofcontents

  \chapter{Foo}

  \begin{appendices}


    \chapter{Chapter One}
    \section{Foo section}
    \chapter{Chapter Two} 
  \end{appendices}
\end{document}