\documentclass{article} \pagestyle{empty} \usepackage{pstricks} \usepackage{pst-barcode} \usepackage{graphicx} \begin{document} \begin{pspicture}(2in,2in) \psbarcode{BEGIN:VCALENDAR^^J% VERSION:2.0^^J% BEGIN:VEVENT^^J% SUMMARY:25th Pacific Asia Conference on Language, Information and Computation^^J% ORGANIZER;CN=Assoc Prof Francis Bond:MAILTO:fcbond@ntu.edu.sg^^J% URL:http://portal.cohass.ntu.edu.sg/PACLIC25/^^J% LOCATION:Nanyang Technological University, Singapore^^J% DTSTART;TZID=Asia/Singapore:20111216T090000^^J% DTEND;TZID=Asia/Singapore:20111218T180000^^J% END:VEVENT^^J% END:VCALENDAR} {eclevel=M height=2 width=2}{qrcode} \end{pspicture} \end{document}