We just came across this great little tip to remove all your personal information from Office 2007 documents when you are preparing to publish them. In some cases, this is information such as comments and revision marks or information that was hidden and then forgotten. This type of information usually doesn't pose a security risk but it might not be information you want distributed when you send out the final Office document.
Office now provides an inbuilt tool called the Document Inspector which can identify and purge this unwanted information. To use the Document Inspector in Word 2007 say :
1. From the File Menu (or Start ball), select Prepare, then Inspect Document.
2. Clear the check boxes next to any items you don't want the inspector to scan for, and then click Inspect.
3. A results page will display the type of items found and a Remove All button next to each type of item to clear it from the document. Simply press this button to purge the information required from your document.