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Encrypting PDF files

Set a document password to protect and encrypt a PDF file. Only users who have the password can open and decrypt the PDF file.

Important

  • Encryption is possible only for scan files that are sent by e-mail or Scan to Folder and saved on a memory storage device.

  • You cannot open an encrypted file without a document password. Make sure you do not forget the file's password.

1Press [Send File Type / Name].

Operation panel screen illustration

2Press [PDF].

If necessary, select [High Compression PDF].

3Press [Security Settings].

4Select [Encryption] tab.

5In [Encrypt Document], press [On].

6In [Password], press [Enter].

7Enter a password, and then press [OK].

The password entered here will be required to open the PDF file.

8Enter the password again to confirm it, and then press [OK].

9In [Encryption Level], select [40 bit RC4], [128 bit RC4], [128 bit AES] or [256 bit AES].

10Press [OK] twice.

Note

  • A document password cannot be the same as the master password.

  • Document passwords can contain up to 32 alphanumeric characters.

  • You cannot use Adobe Acrobat Reader 3.0 or 4.0 to view PDF files that were created using [128 bit RC4] encryption.

  • PDF files created using [128 bit AES] encryption can be viewed only with Adobe Reader 7.0 or later.

  • PDF files created using [256 bit AES] encryption can be viewed only with Adobe Reader 9.0 or later.

  • If [Low Resolution Only] is selected as the print permission, you cannot select [40 bit RC4] as the PDF encryption level.