Using PGN or TIFF...anything other than PS

When adding a graphic file like PGN or TIFF, I get a screen that show the graphic turned horizontal. The original is 8.5x11 portrait. The resulting PDF show 11x8.5. The problem is when I combine the graphic with other PS docs and use the graphic as the cover the cover is 11x8.5 and the rest of the doc (PS) is 8.5x11. Is there a way to correct this problem.