preamble.tex

% Packages and formatting rules go here
\usepackage{enumitem} % for customizing list environments
\usepackage{titlesec} % for customizing section titles
\usepackage{fancyhdr}
\usepackage{afterpage}


% Custom commands
\newcommand{\resolutionyear}[1]{\def\theyear{#1}}
\newcommand{\resolutioncommittee}[1]{\def\thecommittee{#1}}
\newcommand{\resolutionnumber}[1]{\def\theresolutionnumber{#1}}
\newcommand{\resolutiondate}[1]{\def\thedate{#1}}
\newcommand{\resolutionmeetingnr}[1]{\def\themeetingnr{#1}}

% Formatting the section and list style for the clauses
\titleformat{\section}[block]{\normalfont\Large\bfseries}{\thesection.}{1em}{}
\titleformat{\subsection}[block]{\normalfont\large\bfseries}{\thesubsection.}{1em}{}

\newcommand{\pream}[1]{
\section*{Preamble}
\begin{enumerate}[label=\arabic*.]
#1
\end{enumerate}
}

\newcommand{\operative}[1]{
\section*{Operative Clauses}
\begin{enumerate}[label=\arabic*.]
#1
\end{enumerate}
}

% in your preamble.tex file


% in your preamble.tex file


% Page style for the first page
\fancypagestyle{firstpage}{
  \fancyhf{} % Clear all header and footer fields
  \fancyhead[C]{
  \includegraphics[width=6cm]{images/un_logo}} % for example, add a logo in the center of the header
  \fancyfoot[C]{\thepage}
  \renewcommand{\headrulewidth}{0pt} % remove the header line
  \renewcommand{\footrulewidth}{0.4pt} % line above the footer
}

% Page style for the rest of the pages
\fancypagestyle{otherpages}{
  \fancyhf{} % clear all header and footer fields
  \fancyhead[C]{\thecommittee} % different header content
  \fancyfoot[C]{\thepage}
  \renewcommand{\headrulewidth}{0.4pt} % line under the header
  \renewcommand{\footrulewidth}{0.4pt} % line above the footer
}