Fair enough comment and could point to the problem.

CAM::PDF was last updated a decade ago; PDF::API2 was last updated a few months ago. When the OP sorts out the API::PDF2 installation problem, something like this might be a better way to go: 

#!/usr/bin/env perl

use strict;
use warnings;

use PDF::API2;

my $src = PDF::API2->open('DX.pdf');
my $pdf = PDF::API2::->new();

for my $page_num (2 .. $src->page_count() - 1) {
    $pdf->import_page($src, $page_num, $page_num - 1);
}

$pdf->save('DXout2.pdf');

[download]

I did a visual check of "DXout2.pdf": it looks the same as "DXout.pdf" but is substantially larger. 

$ ls -al
...
-rw-r--r-- 1 ken None  3855 Mar 25 09:10 DX.pdf
-rw-r--r-- 1 ken None  3277 Mar 25 09:42 DXout.pdf
-rw-r--r-- 1 ken None  5525 Mar 25 10:46 DXout2.pdf
...

[download]

If the OP chooses that route, an improvement on my simplistic solution may be worth investigating.

Edit (fixed typo): s/API::PDF2/PDF::API2/

— Ken

In reply to Re^3: CAM::PDF Error: Expected identifier label by kcott
in thread CAM::PDF Error: Expected identifier label by jmlynesjr

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.