An online collaborative session application executing on a processing device tracks a state of an application shared by the processing device over an online collaborative session. The online collaborative session application receives data indicative of an annotation made to an instance of the application as part of the online collaborative session. A first location of the annotation relative to the instance of the application is determined from the data indicative of the annotation and the state of the application. Based on the tracking, a change to the state of the application is determined. A second location of the annotation is determined based on the change of the state of the application.