Hi all, i'am new to Perl programming. I'was tring the functionalities to perform pdf file encryption and decryption. working on linux environment, installed PDF::Tk and corresponding binary file. Please find below the sorce code for tring to encryption (apps.pdf file).

sorce code:

use PDF::Tk;
my $doc=PDF::Tk->new(pdftk=>'/apps/free/pdftk/1.44/bin/pdftk');
$doc->call_pdftk('apps.pdf', 'test.pdf','owner_pw','abc12345');

[download]

getting error as below:

Error: Unexpected command-line data: owner_pw where we were expecting an input PDF filename, operation (e.g. "cat") or "input_pw". Exiting. Errors encountered. No output created. Done. Input errors, so no output created. pdftk apps.pdf owner_pw abc12345 test.pdf failed: 256 at /usr/lib/perl5/site_perl/5.10.0/PDF/Tk.pm line 73.

note: created a new pdf 'apps.pdf' with Document Open Password as 'abc12345' and permission Password as 'abcd'.

Please help me in resolving the above issue.

In reply to pdftk encryption function by Anonymous Monk

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