新特性
l Placeholder text
l 文档保护

| The Placeholder text helps the user determine what to enter in blank form fields.
| Document protection is a good tool to help prevent the user from editing the portions that should be read-only . By protecting the document, you can allow the user to fill out certain defined fields but not make entries in other portions of the document. Document protection can allow changes to the style of the document while defining what styles are available and usable. The user can then see the styles that are approved for the corporate policy, for instance.
| New features like document protection, validation as-you-type from the schema, and placeholder text have created a strong user experience. The Word document we were working with essentially became a form for an XML data-entry system.