% You can use 11pt or 12pt font size
\documentclass[10pt,language=french]{ETSletter} % Date, subject start and logo in French
% \documentclass[11pt,language=english]{ETSletter} % Date, subject start and logo in English
% \documentclass[11pt,language=spanish]{ETSletter % Date, subject start and logo in Spanish
% If you provide the option signature, the class will create
% a signature field that can be signed using Acrobat Reader
% \documentclass[10pt,language=french,signature]{ETSletter}
% To create some random text as example
\usepackage{lipsum}
% Uncomment this line if you don't want page numbering
%\pagenumbering{gobble}
% As per the new ETS guidelines, the phone number on the letters
% should be the one below, but I kept the customization option just in case
\ETSphone{514 396-8800}
\ETSdepartment{Direction générale} % Your department here
\ETSname{Aldus Dumbledore} % Your name here
% \ETScity{Montreal} % If you want to change the default city (Montreal)
% Optional subject line
\subject{L'insupportable métamorphose}
% You can create your signature here if you want to use an image.
% If you provide the option "signature" to the document class, it will
% create a signature field to be signed via Adobe Acrobat Reader.
% In such case, leave the content of \signature empty (i.e., \signature{}).
\signature{
\raggedright
\includegraphics[scale=0.2]{figs/dumbledores_signature.png}
}
% Your address / affiliation details.
\address{\textbf{Directeur de Poudlard\\
Président du Magenmagot\\
Fondateur de l'ordre du Phénix}\\
École de magie et de sorcellerie de Poudlard\\
Highlands, Écosse, Royaume-Uni\\
}
\begin{document}
% The recipient of the letter, in case there is one.
\begin{letter}{
Professeure Minerva McGonagall\\
École de magie et de sorcellerie de Poudlard\\
Highlands, Écosse, Royaume-Uni\\
}
\opening{Chère Professeure McGonagall,}
% The letter's content goes here.
\lipsum[1-3]
\closing{Bien cordialement,}
\end{letter}
\end{document}