I'm using tikzpicture with includegraphics to put a picture on a document. I would like to make the image bigger than usual, but if I do so, a blank page appears. I searched "remove blank pages" and found several questions and answers, but no one apparently fits with my problem.
Example of code
\documentclass{article}
\usepackage{tikz}
\usepackage[papersize={18.9cm,24.61cm}]{geometry}
\begin{document}
\begin{center}
\begin{tikzpicture}[x=1mm,y=1mm]
\draw(0,0) rectangle (135,200);
\end{tikzpicture}
\end{center}
\end{document}
If the rectangle is smaller, then no blank page apppear. I tried also to put the tikzpicture in a figure environment, but then the figure is "postponed" with respect where I want (even if I use the float position [h])
So, how can I remove the extra blank page? (or, alternatively, how can I force a figure to stay where I put?)

