A method of processing annotations is provided in accordance with an aspect of the present invention. The method includes the step of displaying in a workspace a document and a first visual representation of the annotations, which are defined by properties. The method includes the step of displaying in a markup window a catalog of the annotations that include values of the properties of the annotations. The method includes the step of sorting the catalog according to a chosen one of the properties. The method includes deriving a second visual representation of a first one of the annotations in response to an input modifying the value of a first one of the properties thereof in the catalog. The difference between the first of visual representation and the second visual representation of the first one of the annotations may be related to the first one of the properties.