Transparent PNG overlay

Version 1.09 of PGF/TikZ introduced the special current page node, that can be used for absolute positioning of elements on the current page. In this example I've overlayed the page with a transparent PNG image to achieve an interesting effect.

The example requires PDFTeX >= 1.30.0, and the document has to be compiled twice. Download the image used as overlay here: rblend.png


transparent-png-overlay

Edit and compile if you like:

\documentclass[a5paper]{article}
% Requires PGF >= 1.09
% Note:
% This example works only with pdftex >= 1.30.0
% You have to run pdftex on the example twice!
\usepackage{amsmath}
\usepackage{tikz}
\begin{document}
\thispagestyle{empty}
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mollis nisl. Nullam tempor, diam non tincidunt tincidunt, nunc tortor
elementum odio, nec iaculis urna leo a eros. Lorem ipsum dolor sit amet,
consectetuer adipiscing elit. Sed elit elit, pellentesque et,
sollicitudin a, imperdiet eget, tellus. Vestibulum et sapien. Maecenas
libero. Vivamus vel metus in ipsum ultricies commodo. Donec quam. Fusce
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\begin{multline}\label{eq:steeringfull}
\begin{bmatrix}
m-Y_{\dot{v}} & Y_{\dot{r}} & 0\\
-N_{\dot{v}} & I_z-N_{\dot{r}} & 0\\
0 & 0 & 1
\end{bmatrix}
\begin{bmatrix}
\dot{v} \\ \dot{r}\\ \dot{\psi}
\end{bmatrix}\\ +
\begin{bmatrix}
-Y_v & -Y_r+mu_0\\
-N_v & -N_r & 0\\
0 & -1 & 0
\end{bmatrix}
\begin{bmatrix}
v \\ r \\ \psi
\end{bmatrix} =
\begin{bmatrix}
 
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Click to download: transparent-png-overlay.textransparent-png-overlay.pdf
Open in Overleaf: transparent-png-overlay.tex