Property annotations describe the class of annotations which are stored as a property on an object [Example: Property annotations may appear on paragraph properties, run properties, table rows, etc. end example] In these cases, the annotation's semantics are defined by the property, as they can affect content and/or formatting.

[Example: Consider the following WordprocessingML markup for a paragraph reading Example Text, where the first word had the bold property applied when the editing application was tracking revisions:

<w:p>
<w:r>
<w:rPr>
<w:b/>
<w:rPrChange … >
<w:rPr/>
</w:rPrChange>
</w:rPr>
<w:t>Example</w:t>
</w:r>
<w:r>
<w:t xml:space="preserve"> text.</w:t>
</w:r>
</w:p>

The rPrChange element (§2.13.5.32; §2.13.5.33) contains the set of previously applied revision properties associated with a particular author at a particular time. It is stored itself as a property on the parent run which was modified. end example]