This enables users to fill the forms whereas the users from the group are allowed to edit the document.
If you use security certificates it allows you to create different access rights for several user groups. In this around 40-bit encryption is used which makes it a difficult challenge to leak a password. As Adobe Acrobat Pro XI can never disappoint users with the protection, it uses RC4 encryption algorithm where Adobe Acrobat Pro XI and upwards can also use Advanced Encryption Standard.
