Duplicating several pages many times

Question

Hello all.
Does anyone know of a script that will take, say a two-page PDF and duplicate it many times? The end result would be a PDF that has the pages in a 1-2-1-2-1-2-1-2-1-2.... format.
I've seen a similar script but that will take a two-page PDF for example and turn it into 1-1-1-1-1-1-1-2-2-2-2-2-2-2.... : http://www.evermap.com/JavaScript/CarbonCopy.txt
Many thanks
Colly

Answer 1

This code should do it... You need to execute it from the JS console and adjust the temp file path and number of copies to create, if required:
var numCopies = 4; // This is the number of copies that will be added
var tempFilePath = "/c/temp/copy.pdf"; // Enter a temporary file path here
this.saveAs({cPath: tempFilePath, bCopy: true});
for (var i=0; i<numCopies; i++)
    this.insertPages(this.numPages-1, tempFilePath);