(This article applies to Microsoft Word 2007)
In Word 2007, you can add document properties as a content control (insert -> quick part object) in your document. For example, you can add publish date and the title as shown in following figure:
These document properties can be edited directly in the document:
But if you are not happy with the way the date is presented (the format), you can change this. Therefore you need the ribbon menu Developer. Go to this tab, and click on the Properties button. The following property pallet is shown.