The image in my header covers the wording in the document once i have PDF'd it

Hi,

This is my first time using this message board, and i am a new user of Adobe products.

Here is the problem i have:

I have a Microsoft word document (not created by me) that has an image in the header of the page that takes up the whole page.  I then have a text box on that page with the document title.  This text box is in the main part of the page and it sits on top of the image that is in the header.

This all looks fine, but when i PDF the document, the image is covering the text box and you can’t see the wording.

I am using Adobe Writer XI, Microsoft Office 2010 - I hope someone is able to help me with this problem.

Thanks

James