Issue with PDF attachments not showing correctly when opened

Hi there.

I have attached a pdf to the site (loaded up into media and linked to it from a page and it opens mis-alighned on the page.

See http://www.publicaffairsrecruitment.com.au/wordpress/wp-content/uploads/2013/11/2013-Recruitment-Sessions.pdf

Everything is over to the right and there is a white gap on the left hand side. It was all fine when I used a non_WPMU DEV theme.

Is there a way to fix this?

Thanks.