Török Edvin 7606789f91 Better detection for encrypted PDFs (bb #2448) ...

If --block-encrypted is specified then we can detect Encrypted.PDF if:
 - PDF is encrypted with R 2,3,4 or 5
 - PDF is not displayable without specifying a password

If PDF is encrypted, but is displayable without specifying a password, then it
is not detected as Encrypted.PDF.

2011-05-07 18:14:58 +03:00

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