I'd like to produce a bunch of pages in the 'minicard' format (2.75 by 1.1), with a 1-inch qr code taking up one side of the thing, and centered multiline text on the other side.

Unfortunately, I don't have a handle on vertical centering. My current approach uses the 'm' column type, which supposedly centers text vertically, but that isn't happening:

\documentclass{article}
\usepackage{graphicx}
\usepackage{array}
\usepackage[margin=.05in,papersize={2.75in,1.1in}]{geometry}
\begin{document}
\renewcommand\arraystretch{0}
\renewcommand\tabcolsep{0pt}
\begin{table}
\begin{tabular}{p{1in} | >{\centering\arraybackslash}m{1.65in} |}
\hline
\includegraphics[width=1in,height=1in]{600px-QR_code_Wikimedia_Commons_(URL).png}
& unique key a
\\ \hline
\end{tabular}
\end{table}
\end{document}
A solution would be wonderful, but I'd settle for an explanation. Should I even be using a table?
:-)– morbusg Aug 26 '12 at 09:57\raisebox{-1cm}{\includegraphics[.... }which might give you an idea why this is happening :) – percusse Aug 26 '12 at 09:58