Encrypting Pdf Document And Adding Digital Signature; Password-Based Encryption - Oce VarioLink 4522c User Manual

7.3

Encrypting PDF document and adding digital signature

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 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
[Encryption Target]
[Encryption Type]
[Signature]
[Encryption Level]
[Password]
[Document Permis-
sions]
VL6522c/VL5522c/VL4522c
Description
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.
Select [Password].
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].
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
Enter the password required to open a PDF document.
Enter the password twice for confirmation.
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.
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