Guaranteed PDF Decrypter 3.0

• remove restrictions on any PDF document (you should have the right to do it, for example, if you forgot the password). Any Acrobat version up to 9 is supported, even with 256-bit AES or 128-bit RC4 encryption. PDF restrictions removal is an instant process. Unlocked file can be opened in any PDF viewer without any restrictions so you may edit/copy/print it.

• remove the PDF open password. Decryption of the file with password for opening is guaranteed for PDF files with 40-bit key only (Acrobat 3, 4 compatible encryption). This process takes several days on one home computer.
  

Used crypto algorithms were being improved with PDF developing - up to PDF version 1.4 only 40-bit keys have been used, then the 128-bit ones came, and starting from version 1.6, AES encryption is being added. In Acrobat 9, 256-bit AES keys were introduced.
However, PDF security system is implemented so that a file with restrictions may be decrypted instantly, irrespective of the password length, even for 256-bit keys. A document with password for opening, using 40-bit key, can be decrypted on a modern computer within several days by using guaranteed decryption. To open a document with 128 or 256-bit key, only PDF brute force software can be used.

Features

• Guarantee of removing restrictions regardless of password and encryption type used
• Newest PDF 1.7 ExtensionLevel 3 (Acrobat 9) files support, including AES encryption, Unicode passwords, compressed files and unencrypted metadata
• Removal of some restrictions in signed or certified files by digital signatures
• Very high speed (40-bit key searching procedure is optimized for Pentium II/III, Pentium 4, Core 2 and AMD architecture)
• Versions for dual/dual-core/quad-core processors and network distributed version to use power of distributed clients
• Portability (DOS, Windows, Linux, Solaris, Mac OS versions are available)
• Running in GUI and keeps running in batch mode (as command-line utility)

• DEMO (freeware) version. It demonstrates processing of both security methods but has some limitations and can correctly decrypt only small files. It also doesn't contain distributed computing mechanism.
• Local Quad version. This version process both security methods (i.e. open and permissions passwords), have support for up to four processors/cores. (from €/$35 €/$25)
• Distributed (20-clients) version. This version process both security methods (i.e. open and permissions passwords), have support for up to 20 clients in local network for fast 40-bit key searching (from €/$49)

• UNLIMITED, most powerful version. It does everything, has no limitations. (€/$150)

GuaPDF v. 3.0a Free Demo for Win32, GUI version (320K)      If you got error message like "The application has failed to start because the application configuration is incorrect" you should install Microsoft Visual C++ 2005 Redistributable Package GuaPDF v. 3.0 Free Demo for Win32, command-line version (250K) GuaPDF v. 3.0 Free Demo for Linux (ELF, static, 1M) GuaPDF v. 3.0a Free Demo for Mac OS X (Leopard, Intel only!, command-line + applescript, 900K)     (Please contact me if Mac vesion won't start!) GuaPDF v. 2.2 BETA DEMO for Solaris/SunOS (ELF, static, 150K)

Please test your file before purchasing

Order the commercial versions over the Internet worldwide using secure connection. This means no one (including us) can intercept your confidential information. The temporarily link to the fully functional version you receive immediately after verifying your order. Normally you'll get the program within 10-15 minutes.