Your server administrator can also define some custom properties and these are displayed when you click the Custom Properties link. You can enter your own values for any property that has been designated as modifiable by your server administrator. Click the Information toolbar button or choose the Properties command from the View menu. The Web Publisher Services form is displayed with the file's properties page visible. If the file's properties are not visible, click the Properties link to display them.
Files have the set of default properties listed here.
The user name assigned to the file. Only owners can modify this field. If a file has no owner, anyone can define themselves as owner. This property is only available when the file's content is made searchable. This property is only available when the file's content is made searchable.