I need a flyer transformed from portrait to landscape

I had a flyer designed a few months back but I need it transformed from portrait to landscape so it can be put in to a magazine.

I have the current flyer in PDF format only, which I have attached for reference. The design lends itself to portrait rather than landscape, so a new design may need to be done in order to achieve what I want.

I want the new flyer to have exactly the same look and content as the current one, the only real difference is it being landscape. Perhaps moving the main copyright to the right side of the flyer, having it in white font over the blue background, then having the headline text within the dress in blue font?

Can you help?

Jamie