A fair question. It seem I made a newbie mistake by not publishing the full code. Here it is:

use strict;
use CAM::PDF;
use Data::Printer;

my $doc1 = 'Document1.PDF';
my $draw1 = 'Drawing1.PDF';
my $newdoc1 = 'NewDocument1.PDF';

print  "open the original document \n";
my $pdf1 = CAM::PDF->new($doc1);
my @prefs = $pdf1->getPrefs();
p (@prefs);

print "save it to the new location \n";
$pdf1->output($newdoc1);

print "open the new document \n";
$pdf1 = CAM::PDF->new($newdoc1);

print "open a drawing  \n";
my $pdf2 = CAM::PDF->new($draw1);

print "append the drawing to the new document \n";
$pdf1->appendPDF($pdf2);

print "save the appended document \n";
$pdf1->output($newdoc1);
print "Done \n"
[download]

For clarity I did not include the "if not" code. This code opens the original document and saves it as the new document. Then it re-opens the new document and appends a drawing document and finally saves the combined document. Except that the save does not happen. The output is below:

   
open the original document
[
    [0] undef,
    [1] undef,
    [2] 1,
    [3] 1,
    [4] 1,
    [5] 1
]
save it to the new location
open the new document
open a drawing
append the drawing to the new document
save the appended document
Bad request for object 1121 at position 0 in the file
Use of uninitialized value in string eq at C:/Dwimperl/perl/site/lib/C
+AM/PDF.pm
line 4898.
Done
Press any key to continue . . .
[download]

The first save is ok and is the original document but the second save never happens and the appended drawing is missing.

---

---

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! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

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:
	&		&
	<		&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.