remove restrictions on any PDF document.
EditBy: 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 8 is supported, even with 128-bit AES or RC4 encryption. PDF permission password removal is an instant process. Decrypted file can be opened in any PDF Viewer without any restrictions so you may edit/copy/print it.

GuaPDF can be also used for
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.

Only standard PDF security is supported, neither third-party plug-ins nor e-books.

This is GUI utility for Win32 and command-line utility for Linux, Solaris/SunOS, Mac OS. you can free download Guaranteed PDF Decrypter 2.3 now.