Prints C5 size sliced off

I need to get my C5 Word doc saved in C5 pdf. It takes a snapshot of the midleft part of the Word doc, as though it were A5. The point is, I a get a sliced C5 output.

Is there any way of centering the document in PDF Creator, so the C5 output is clean?

Many thanks for any assistance.

Bryan - way down here in New Zealand