Canon Optura 300, Руководство по эксплуатации

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Security Settings for PDF Files
Apply security to the PDF file.
Encryption Level
High (128-bit RC4) and low (40-bit RC4) level settings are
available.
IMPORTANT
Using the High (128-bit RC4) level setting is recommended. The
Low (40-bit RC4) level setting provides less security.
Requires a password to open the document
Viewing of the document is restricted by a password.
IMPORTANT
Take care not to forget the password once it is set. If you forget
the password, the document can no longer be opened.
Use permissions password to restrict editing
security settings
The following settings are restricted by the permissions
password.
• Printing allowed
This permits printing of the PDF file with a printer.
• Changes allowed
This permits editing of the PDF file; for example, adding
and deleting pages.
• Enable copying of text, images, and accessibility.
This enables the copying of text information embedded
with OCR software and reading of the PDF file with
voice software.
IMPORTANT
• Password protection is recommended when the permissions
of the PDF file are restricted.
• You can change the permissions and cancel password
protection for a password protected PDF file in an application
capable of editing PDF files such as Adobe Acrobat.