cropping

Hello, I don't understand how to get around the red area cropping. I have a cookbook designed at exactly 6" x 9" (the pdf file is exactly these dimensions). I chose that file size from your available size list. Your preview generator gizmo showed my cookbook with a significant portion of the book hacked off on all sides in the "red box". How big do I need to design the file to so that I don't lose anything to cropping? I will just add enough white space around the whole file. At the end of the day I want a 6"x9" cookbook though...and I don't want any white space on the edges. If you can't do this, please let me know. Thanks =] Project ID: 236196