Here's the MWE for my problem:
\documentclass[11pt]{article}
\usepackage{graphicx}
\usepackage{fontspec}
\setmainfont{Adobe Garamond}
\begin{document}
text
\begin{figure}
\centering
\includegraphics[width=0.5in]{file.pdf}
\end{figure}
\end{document}
I'm trying to compile this using xelatex, and am including file.pdf which is PDF 1.6.
When I compile on Ubuntu using TeXLive 2009, I get a warning about the version of the PDF file:
** WARNING ** Version of PDF file (1.6) is newer than version limit specification.
but the file compiles fine otherwise.
However, on MikTeX (v 2.9 64 bit) on cygwin, I get the following message:
** WARNING ** Version of PDF file (1.6) is newer than version limit specification.
** WARNING ** No image converter available for converting file "file.pdf" to PDF format.
** WARNING ** >> Please check if you have 'D' option in config file.
** WARNING ** pdf: image inclusion failed for "file.pdf".
The versions of xelatex are essentially the same. Some googling indicated a problem with dvipdfmx, but I'm confused as to what this has to do with xelatex. Any help would be greatly appreciated.