I have created a catalogue in Indesign.The layout is designed so you flip the cataligue half way through, so the back cover is actually the front cover upside down of the 2nd half. I did this by rotating the back spreads on the file. When I export the file to PDF, acrobat rotates the pages upright again I don't want this! Can anyone help?
Rotating the spread view in InDesign is a convenience to allow you to more easily put rotated content into the pages. It does not affect the actual page orientation. You will want the rotated pages to appear normal, not upside down, when you are doing the layout, or don't rotate the view and rotate the content.