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Office 2008 Security 
 
 
113 
You should also clear the user information from the document properties. 
1.  On the 
File
 menu, click 
Properties
, and then click the 
Summary
 tab. 
2.  Clear the fields that you do not want to share. 
Configure document protection settings in Office 2008 
You can restrict access to documents by using password protection features for Word and Excel. 
Review these features with users who send sensitive documents outside the organization or who 
want to manage document content in a collaborative environment. 
Here are some considerations for improving security in Word or Excel documents by using 
passwords. 
• 
A user can require other users to enter a password to open or modify a document. A 
user who does not have permission to modify a document can save the document only 
by using a different file name. 
• 
Passwords are case-sensitive, so users must type a password exactly as it was created by 
the document owner. 
• 
Users can protect specific elements in a sheet, protect an entire sheet, or protect an 
entire workbook. They can also use passwords to restrict access to an entire workbook 
or to restrict users to read-only access to a workbook. 
Note 
Users should store Excel workbooks and sheets in locations that are available 
only to authorized users. Hidden or locked data is not encrypted in a workbook. Given 
sufficient time and knowledge, any user can obtain and modify any data in any 
workbook he or she has access to. To help prevent this, and to help protect 
confidential information, store workbooks and sheets in secure locations. 
• 
When users prepare a document for review by using the Track Changes feature in 
Word, they can specify that others can change the document only by inserting 
comments, or by inserting comments and tracked changes with revision marks. For 
added security, users can assign a password to ensure that reviewers do not remove this 
type of protection. 
 
Configure password protection in Word 
1.  Open the document that you want to protect. 
2.  On the 
Word
 menu, click 
Preferences
3.  Under 
Personal Settings
, click 
Security