This method provides a simple method for remapping the pages in
a document. It can be used for reordering, copying or deleting
It accepts a list of page numbers and reorders the pages in the
document so that they mach these page numbers. If a number is
repeated more than once, the page is duplicated. If a number is
omitted, the page is deleted.
Page numbers can be delimited using spaces, commas or
semicolons. The first page in a document is page one. So to reverse
a four-page document, you might use "4 3 2 1".