Export pdf per two pages

Question

Hey all,
I need to export to pdf in 2-page-increments
I found a somewhat similar script here in the forum but can't get it to work. Must be an error somewhere
Would someone please check and correct this for InD CC2014?
Thanks so much.
// Output PDF pages per 2 pages.  //
var SectionLength = 2;
for (var p=0; p<app.activeDocument.pages.length; p += SectionLength)
     with(app.pdfExportPreferences)
          if (p+SectionLength-1 > app.activeDocument.pages.length)
               pageRange = app.activeDocument.pages[p].name+"-"+app.activeDocument.pages[app.activeDocument.pages.le ngth-1].name;
          else
               pageRange = app.activeDocument.pages[p].name+"-"+app.activeDocument.pages[p+SectionLength-1].name;
          theFile = new File(pageRange+".pdf");
          app.activeDocument.exportFile (ExportFormat.pdfType, theFile, false);

Answer 1

Hey Jongware,
thanks for your fast response.
In my ExtendScript Toolkit I get the message "undefined is not an object" on line 3 when running with ExtendScript Toolkit CC
Maybe I don't know how to save a script, if there is more to it, than saving it in the right location?
Maybe I made a mistake upon cleaning up your provided script.
Existing script to export PDFs and Package INDDs in 32-page increments?