Konica Minolta bizhub 652 - Manual (Page 79)

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7.3 Encrypting PDF document and adding digital signature 7
7.3 Encrypting PDF document and adding digital signature
Selecting [PDF] or [Compact PDF] as a file type when distributing a scanned document or document saved
in a User Box allows you to enhance security for the PDF document by encrypting it using a password or the
digital ID of a user (public key).
When a device certificate is registered in the MFP, a PDF document can be distributed with a digital signature
added. Adding a digital signature certifies the author (MFP) of the sent document and guarantees that the
document has not been modified after being signed.
Reference
- Using PageScope Web Connection, you can encrypt and add a digital signature to send a document
in a User Box to another device in the PDF format.
- To add a digital signature, it is necessary to encrypt the PDF document using a password or digital ID.
7.3.1 Password-based encryption
To encrypt a document using a password, configure the following settings.
Item Description
[Encryption Target] Select an encryption target.
Selecting [Other than Metadata] excludes the item specified in [PDF Document
Properties] from the encryption target.
Selecting [Other than Metadata] does not allow you to select [Low Level] for
Encryption Level.
[Encryption Type] Select [Password].
[Signature] When a device certificate has been registered in the MFP, specify whether to
add a digital signature.
For details on registering a device certificate in the MFP, refer to the [User's
Guide Network Administrator].
[Encryption Level] Select an encryption level.
•
[Low Level]: RC4 encoding method (40-bit key length), supported by Acro-
bat 3.0 or later
• [High Level 1]: RC4 encoding method (128-bit key length), supported by
Acrobat 5.0 or later
• [High Level 2]: AES encoding method (128-bit key length), supported by
Acrobat 7.0 or later
[Password] Enter the password required to open a PDF document.
Enter the password twice for confirmation.
[Document Permis-
sions] Enter the password required to change the document permissions. Enter the
password twice for confirmation. You cannot use the same password as that
specified in [Password].
After you have configured document permissions, press [Detail Settings] to
configure the detailed permission settings. The set values vary depending on
the encryption level.