\documentclass[a4paper,12pt,DIV50]{scrreprt}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{graphicx}
\usepackage{tikz}
\usepackage[french]{babel}
\definecolor{bleuLille1}{RGB}{022,119,184}
\begin{document}
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\begin{tikzpicture}[remember picture, overlay]
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\draw (1,20) node[rotate=90] {\sffamily \LARGE \color{white}\textbf{MASTER de Technologie \LaTeX iène}};
\draw (2.5,20) node [rotate=90,above] {\sffamily \LARGE \color{white}\textbf{Mention : Beaux textes, images et PAO}};
\draw (3.5,20) node [rotate=90,above] {\sffamily \LARGE \color{white}\textbf{Spécialité : FICHES}};
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\begin{tikzpicture}[remember picture, overlay]
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\draw (12,-3.5) node {\sffamily \Huge \color{bleuLille1}\textbf{Les fiches de Bébert :}};
\draw (12,-5) node {\sffamily \Huge \color{bleuLille1}\textbf{pour apprendre \LaTeX}};
\draw (12,-6.5) node {\sffamily \Large \color{bleuLille1}\textbf{Nombreux exemples avec des vrais morceaux de code}};
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\draw ((12,-10) node {\sffamily \Large \color{bleuLille1}\textbf{Bébert}};
\draw ((12,-11) node {\sffamily \Large \color{bleuLille1}\textbf{Le-Roi-de-la-Fiche}};
\draw (12,-13) node {\sffamily \color{bleuLille1}\textbf{Année 2012 -- 2013}};
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\begin{tikzpicture}[remember picture, overlay]
Sur chaque page ou seulement sur la page de titre?