Think of annotations as an overlay on an image, which, with the exception of a sticky note, become a permanent (locked) part of the image. Once annotations are locked, you cannot change them. Before an annotation is locked, you may right-click it to access and modify its attributes. In the topics below, we explain the Annotation toolbar, how to add annotations to an image, and how to change the properties of an annotation before it is locked. For more information, click the appropriate link.