Well, maybe using $pdf instead of $self would help here. 
$pdf = new PDF::Labels(
                        $PDF::Labels::PageFormats[0],
                                filename=>'labels.pdf',
                                Author=>'PDF Labelmaker',
                                Title=>'My Labels'
                );

$pdf->{'FontSize'} = 8; # or whatever you need
# rest of your code

[download]

In reply to Re^3: Need help RTFM: Setting fontsize with PDF::Labels module by gpapkala
in thread Need help RTFM: Setting fontsize with PDF::Labels module by nysus

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