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When working with a tikz drawing within LaTeX document we might want to locate an object using an absoute position on the page rather than leaving LaTeX to make the decision for us.
The use of nodes and the current.page label in conjunction with some other parameters attached to the tikz drawing will allow us to achieve the absolute positioning on the page.
As an example consider a one page drawing where we want to put a text box in the centre of the page.
\begin{tikzpicture}[remember picture,overlay]
\draw (current page.center) node {Add Text};
\end{tikzpicture}
If we wanted to add elements to the edge of a page we could use the current page.north west anchor to locate in the top left of the page.
Other useful resources are provided on the Supplementary Material page.
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