Guaranteed recovery for 40-bit encryption (takes a few days)
Using pre-computed hash tables (takes a few minutes; 99.9% probability)
I think I used this once and it was pretty fast. I'd give it a try (see torrent and demonoid or mininova).
or try
PDF Password Remover - pdf password recovery software (decrypt pdf,remove pdf password)
GuaPDF - a program to remove PDF passwords and restrictions
The PDF-Analyzer . . .
How it works
How does PDF password recovery work?
Hope this helps.
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Hey Newbie, watch the Wickedfire newbie video
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