Gets the tag that indicates that the property it labels is built-in.

Gets the tag that denotes a property holding information about a form field or calculated field extracted from a document.

Gets the tag indicating a document part that is not visible for regular users.

Gets the tag that denotes a property holding information about a document page.

Gets the tag that indicates that the property it labels is read-only and cannot be changed by GroupDocs.Metadata.

Get the tag labeling a property containing information about a document revision (tracked change).

Gets the tag indicating a property containing document statistics (word count, character count, etc).

Gets the tag that labels user comments shown in the document content.