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5
[File Format - PDF Security] Screen
This screen allows you to encrypt a PDF file with a password, and assign the access privileges
for the file operation.
1
Select any option.
„
Off
The file is not encrypted, and no access privilege is assigned.
„
Password
Encrypts the file using a password.
„
Encryption Algorithm
Allows you to specify the encryption method.
z 128-bit RC4
Encrypts the file by the 128-bit RC4 method. Files encrypted by this method can be
opened with Adobe
®
Acrobat
®
5.0 or later.
Important •
When the 128-bit RC4 method is used to encrypt a file, and [PDF Signature] is selected, files can be
opened only with Adobe
®
Acrobat
®
6.0 or later.
z 128-bit AES
Encrypts the file by the 128-bit AES method. Files encrypted by this method can be
opened with Adobe
®
Acrobat
®
7.0 or later.
z
256-bit AES
Encrypts the file by the 256-bit AES method. Files encrypted by this method can be
opened with Adobe
®
Acrobat
®
9.0 or later.
„
Supported Version
Displays the supported versions of Adobe
®
Acrobat
®
for encryption.
„
File Open Password
Displays the [PDF Security - File Open Password] screen.
If you select [On] and set a password, the password is required to open the file.
You can enter a password with up to 32 characters.
„
Permissions
Displays the [PDF Security - Permissions] screen.
Refer to "[PDF Security - Permissions] Screen" (P.284).