The module PDF::API2::Simple provides a "Simplistic wrapper for the excellent PDF::API2 modules". This is probably the easiest to use with these methods:

• open() — "This method opens an existing PDF for editing. ..."
• image() — "Renders an image onto the PDF. ..."

See also: PDF::API2

This basically seems to work, sweeten to taste:

use Barcode::DataMatrix;
use PDF::API2;
my $x = 100;
my $y = 200;
my $sz = 10;
my $mat = Barcode::DataMatrix->new()->barcode('Hello World');
my $pdf = PDF::API2->open('original.pdf');
my $page = $pdf->openpage(1);
my $content = $page->gfx();
for my $i (0 .. $#$mat) {
   for my $j (0 .. $#{$mat->[$i]}) {
      if ($mat->[$i][$j]) {
         $content->rect($x+$sz*$j, $y-$sz*$i, $sz, $sz);
      }
   }
}
$content->fill();
$pdf->saveas('modified.pdf');
[download]

Thank you very much. I'll request the installation of the modules and test this out asap. Regards, Kurt

Tested this and it works great ! Thanks, Kurt

Hi, I tried the code. After including the necessary packages, I get the below error.

C:\>perl c:\PerlScripts\test.pl
String found where operator expected at C:/Strawberry/perl/site/lib/Barcode/Data
Matrix.pm line 9, near "has "encoding_mode""
        (Do you need to predeclare has?)
String found where operator expected at C:/Strawberry/perl/site/lib/Barcode/Data
Matrix.pm line 17, near "has "process_tilde""
        (Do you need to predeclare has?)
syntax error at C:/Strawberry/perl/site/lib/Barcode/DataMatrix.pm line 9, near "
has "encoding_mode""
BEGIN not safe after errors--compilation aborted at C:/Strawberry/perl/site/lib/
Barcode/DataMatrix.pm line 142.
Compilation failed in require at c:\PerlScripts\test.pl line 1.
BEGIN failed--compilation aborted at c:\PerlScripts\test.pl line 1.

C:\>

Please help me out with this. Thanks in advance

How did you "include the necessary packages"? It seems Barcode::DataMatrix needs Any::Moose, but it's not working correctly.
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ