A Mixed Media Reality (MMR) system and associated techniques are disclosed. The MMR system provides mechanisms for forming a mixed media document that includes media of at least two types (e.g., printed paper as a first medium and digital content and/or web link as a second medium). In one particular embodiment, the MMR system includes a method, system, and computer program product for shared document annotation. A shared annotation is received or retrieved for a source document displayed in a browser. A modified document comprising a hotspot corresponding to the shared annotation is displayed in the browser, and upon a printing command, coordinates are captured corresponding to a printed representation of the modified document and the hotspot, resulting in a rendered page layout comprising the printed representation including the hotspot.