[Tex/LaTex] Fill the left 1/3 of the title page with color

colorpositioningtitles

This is my first time to try and write documentation by using LaTeX. The generated PDF is quite impressive, but there is one thing I have no idea of how to do it:

I would like to have the left 1/3 of my title page (created by titlepage) filled with color (no left and top, bottom margin), and then put the title text on it. The title will be centered, so its left part could overlap with the colored left 1/3 of the page.

Is it doable? What is the best way? Can the picture environment do this?

(The documentclass is [a4paper]{report}.)

Best Answer

A simple solution, without complex drawing packages:

\documentclass{report}
\usepackage{xcolor}
\usepackage{eso-pic}

\begin{document}

\begin{titlepage}
\AddToShipoutPictureBG*{\AtPageLowerLeft{%
  \color{blue!20}\rule{.33\paperwidth}{\paperheight}}}
Title
\end{titlepage}

bar
\newpage

blah

\end{document}
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