letter.tex

\documentclass[11pt]{article}

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\usepackage{geometry}					% page geometry
\usepackage{tabularx}					% improved tables
\usepackage{lipsum}						% for sample filling
\usepackage{multirow}					% multiple row cells in tabulars
\usepackage{ifthen}						% conditionals
\usepackage[export]{adjustbox}				% required by tabularx
\usepackage{datetime}					% date formats
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\geometry{paper=letterpaper, margin=3cm}	% set paper and marings
\setlength{\parindent}{0pt}					% remove paragraph indentation
\setlength{\parskip}{0.7\baselineskip}			% set paragraph spacing
\renewcommand{\tabularxcolumn}[1]{m{#1}}	% vertical centering for X columns in tabularx
\pagestyle{plain}
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%%%%%%%%%%%%%%
\def\usefrench{false} 						% french if true, otherwise english
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\def\name{\small Jonathan Viquerat}

\def\positionfr{Ingénieur de recherche}
\def\positioneng{Research engineer}
\def\position{\small \ifthenelse{\equal{\usefrench}{true}}{\positionfr}{\positioneng}}

\def\teamfr{\'Equipe CFL, CEMEF}
\def\teameng{CFL team, CEMEF}
\def\team{\small\bfseries \ifthenelse{\equal{\usefrench}{true}}{\teamfr}{\teameng}}

\def\web{https://jviquerat.github.io}
\def\mail{\small jonathan.viquerat@mines-paristech.fr}
\def\logo{\centering \includegraphics[width=.45\textwidth]{mines_psl_logo.png}}

\def\datefr{\ddmmyyyydate Le \today}
\def\dateeng{\today}
\def\date{\ifthenelse{\equal{\usefrench}{true}}{\datefr}{\dateeng}}

\def\subjectfr{\textbf{Objet : }}
\def\subjecteng{\textbf{Subject: }}
\def\subject{\ifthenelse{\equal{\usefrench}{true}}{\subjectfr}{\subjecteng}}
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\begin{document}

% remove page numbering
\pagestyle{empty}

% letterhead
\begin{tabularx}{\textwidth}{X | @{\hspace{2.2em}} l}
\centering \multirow{6}{*}{\logo}	& \\
						& \name\\ 
						& \position\\ 
						& \team\\
						& \mail\\
						& 
\end{tabularx}%

% vertically center the content
\vfill

% date on the right
\hfill \date

% subject
\bigskip
\subject A formal letter topic
\bigskip

% body
Dear Sir,

\lipsum[1]

\lipsum[2]

% Regards
\bigskip
\hfill
\begin{tabular}{p{.4\linewidth}}
	Best regards, \\[2\medskipamount]
	J. Viquerat
\end{tabular}

% vertically center the content
\vfill

\end{document}