44 lines
1.8 KiB
Markdown
44 lines
1.8 KiB
Markdown
---
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Title: Use any letterhead in LaTeX
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Date: 2019-04-22 20:00
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Author: Fabrice
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Category: tips
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Tags: LaTeX
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Slug: latex-letterhead
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Header_Cover: images/covers/palace.jpg
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Summary: A quick trick to use a pdf letterhead with latex.
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---
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It sometimes appears that I have to write some official documents from some entities, especially for admin stuff.
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However, those letterheads are often provided in some [proprietary format](https://en.wikipedia.org/wiki/Office_Open_XML) with which I do my best to make as few interactions as possible.
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Especially, I feel more comfortable editing some LaTeX instead of writing it in [libreoffice](https://libreoffice.org/) (for instance).
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Thus, thanks to [Nicolas Trotignon](https://perso.ens-lyon.fr/nicolas.trotignon/) who found a simple workaround, here is a small trick to do it.
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As a preliminary, you have to obtain a pdf version of the letterhead (to do so, I'm using [online office 365](https://en.wikipedia.org/wiki/Office_365) as it works in Linux, yes, shame on me).
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Once this is done, the core of this method is to use the [wallpaper](https://www.ctan.org/pkg/wallpaper) package to embed the letterhead as a background image, and then play with margins to make it look nice.
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Here follows a minimal example with the [corresponding output](examples/background-latex.pdf). Replace `background.pdf` with your (empty) letterhead of course.
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This can also be adapted to other classes, such as [`letter.cls`](https://ctan.org/pkg/letter).
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```tex
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\documentclass[a4paper]{article}
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% Design and encoding stuff
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\usepackage[utf8]{inputenc}
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\usepackage[UKenglish]{babel}
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\usepackage[T1]{fontenc}
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\usepackage{libertine}
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% The main trick
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\usepackage{wallpaper}
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\CenterWallPaper{1}{background.pdf}
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% margin
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\usepackage[inner=4.5cm,top=6cm]{geometry}
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\begin{document}
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% blabla
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Hello, World!
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% …
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\end{document}
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```
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