Guaranteed PDF Decrypter 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.

The standard security of PDF documents can have two different of passwords: a Document Open password and a Permissions password. When a Document Open password (also known as a user password) is set, anyone who tries to open the PDF must type in the password. When a Permissions password (also known as a master password) is set, recipients dont need a password to open the document, but they must type the Permissions password to set or change the restricted features. If the PDF is secured with both types of passwords, it can be opened with either password, but only the Permissions password allows the user to change the restricted features.