I have pre-purchased my cd already. Instead of an autograph book I am going to have the characters sign a matte to border a picture and use a pic from one of the disney photographers. My question is, the pics they take are they vertical or horizontal? I don't want the signatures to be for a vertical pic and only get horizontal pics. Thanks.

Which format (vertical or horizontal) you want. The PhotoPass photographers will take both horizontal and vertical images, but because you have the disk and reprinting permissions, you can crop and edit them, so even if it is not the format you want, you may be able to change it by cropping.