feat: init

create_watermark.sh

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+input_pdf=$1
+watermark=$2
+new_pdf="${input_pdf::-4}_watermarked.pdf"
+
+# create watermark template
+cd ~/Documents/prog/latex/watermark/
+sed -i 's/\(\\def\\watermark{\).*}/\1'"${watermark}"'}/g' watermark_template.tex
+latexmk -pdf watermark_template.tex > /dev/null
+
+cd -
+pdftk $input_pdf multistamp ~/Documents/prog/latex/watermark/watermark_template.pdf output $new_pdf

watermark_template.tex

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+\documentclass{article}
+\usepackage{tikz}
+\usepackage{calc}
+\usepackage[letterpaper,top=0cm,bottom=0cm,left=0cm,right=0cm,marginparwidth=1.75cm]{geometry}
+\begin{document}
+
+\def\watermark{Exclusivement destiné à la location}
+
+\newlength{\watermarklength}
+\setlength{\watermarklength}{\widthof{\watermark}}
+
+\def\step{\the\watermarklength}
+
+\def\startX{-20}
+\def\stepX{-16}
+% \def\stepX{\pgfmathparse{\step+\startX}\pgfmathresult$}
+\def\startY{-30}
+\def\stepY{-26}
+% \def\stepY{\pgfmathparse{\step+\startY}\pgfmathresult$}
+% \def\stepY{8}
+
+\begin{tikzpicture}[remember picture,overlay]
+
+    \foreach \x in {\startX,\stepX,...,20} {
+        \foreach \y in {\startY,\stepY,...,20} {
+            \node[opacity=0.3, scale=1, rotate=45] at (\x, \y) {\watermark};
+        }
+    }
+\end{tikzpicture}
+\end{document}