I ran it like this: 
#!/usr/bin/perl -l

use strict;
use warnings;
use PDF;

my $file = '/root/abitl.pdf';

my $pdf = PDF->new;
$pdf->TargetFile($file);
$pdf->LoadPageInfo;
if ( $pdf->IscryptPDF ) {
    print "File is password-protected";
}
else {
    print "File is not password-protected";
}

[download]
Note: You did use the IscryptPDF method correctly. The documentation for PDF incorrectly lists it as IscryptedPDF.

In reply to Re: use PDF; woes by Khen1950fx
in thread use PDF; woes by zeltus

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