 a digital object 
generated in ‘.doc’ format is later saved in ‘.pdf’ format, the way it manifests itself on the 
screen—its documentary presentation, or “documentary form”—has not changed, so one can 
say that the object has a fixed form.  
One can also produce digital information that can take several different documentary forms. 
This means that the same content can be presented on the screen in several different ways, the 
various types of graphs available in spreadsheet software being one example. In 