Why is only half of the photo printing?

Hi - I'm trying to use pdf creator to convert Word 2010 files into pdf, and have some quite large photos as figures (compressed to 200 ppi) in the word files.  When I try to print to pdf only about half of the photo is coming through, with the rest just being white space. I'm not getting any error messages or anything, PDF creator acts like it was a successful process. Any ideas for a fix?