PDF Password Cracker can be used to decrypt protected Adobe Acrobat PDF files, which have "owner" password and "user" password set. It has Key search attack, which guarantees the decryption of PDF files that use 40-bit encryption. PDF Password Cracker recovers user password required to open the file. Brute-Force or Dictionary attacks are used to recover the user password in PDF Password Cracker software. It needn't Adobe Acrobat software....
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publisher/developer site This download (PDF Password Cracker Ent) is shareware. "Shareware is a marketing method for computer software. Shareware software is typically obtained free of charge, either by downloading from the Internet or on magazine cover-disks. A user tries out the program, and thus shareware has also been known as "try before you buy". A shareware program is accompanied by a request for payment, and the software's distribution license often requires such a payment." More info at
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