\documentclass{article}
\usepackage{pdfpages}
%\VignetteIndexEntry{RcppZiggurat-Intro}
%\VignetteKeywords{Ziggurat, random number generator, RNG}
%\VignetteDepends{RcppZiggurat}
%\VignetteEncoding{UTF-8}

\begin{document}
\includepdf[pages=-, fitpaper=true]{pdf/RcppZiggurat.pdf}
\end{document}