When I try to print booklet, I get the error message "The active document uses multiple page sizes. Print Booklet works only with documents that use consistent page size." All of my pages are 8.5 x 11, and when laid out in print booklet preview, appear correct in size and order. I can't figure out with the problem is.
I've branched this to a new discussion as it had nothing to do with the previous topic.
We've seen this error before (there's at least one thread about it that's several months old), and I can't tell you what causes it, but I believe I was able to work around it by moving the pages into a new file.
Moving it into a new file did not correct my problem. I simply export the file to PDF and print there.