1. A method to be executed at least in part in a computing device for using obscured image data to reconstruct an annotated image, the method comprising: receiving an image to be annotated and annotations to be superimposed onto the image; determining obscured image content (OIC) based on a position of the annotations to be superimposed onto the image; persisting OIC data separate from the image; rendering the annotations on the image; and making the annotated image and the OIC data available for use by annotation-aware and annotation-unaware applications.