Printing or extracting every 3rd page in a PDF

[Vico Drive]

I am trying to extract or print to a new PDF, every 3rd page of a 2500 page PDF.  I feel like I have seen a way to enter into the field where you tell what page numbers to print, some kind of code system to tell it to do something like this.  Is there any way to work with just every 3rd page?

[try67]

Yes, but with over 700 pages it will probably not work (too long for the pages field in the Print dialog).

The alternative is to extract the pages to a new file and then print it. That can be done by extracting them, or simply by deleting the other pages from the original, printing it, and then closing without saving (or saving under a new name).

However, you need to clarify what you mean by "every 3rd page", exactly... Does it start from page 1 (ie. 1, 4, 7, etc.) or is the first page page 3 (then 6, 9, etc.)?

[Vico Drive]

The best way would be to delete pages 3, 6, 9, 12, 15, etc....every 3rd page.  The PDF is almost 2500 pages total

[try67]

You can use this code to do it:

for (var p=this.numPages-1; p>=0; p--) {
	if (p%3!=2) this.deletePages(p, p);
}
this.print();

[Vico Drive]

Ill give that a shot, thanks!  I havent had much luck or experience in creating and working with new scripts