I know how to move one or two pages at a time, to a single alternative point in a PDF. I am working with a PDF that is between 500-1000 pages, and I need to "shuffle" the back half between pages in the front half. For example, in a 100 page document, I want to automatically reorganize the pages so that they go 1, 51, 2, 52, 3, 53, 4, 54, 5, 55, etc. Is this possible? Moving a few pages manually is ok, but not when you have to move 500 of them from one side of the document to the other. Can anyone help me?
If you split the file into two parts, one with the first half of the pages (the odd ones in the new file) and the other with the other half (the even ones in the new file) then you would be able to use this tool I've developed to easily combine them to a single file. You can purchase it from here: Custom-made Adobe Scripts: Acrobat -- Combine Even-Odd Pages