So all of a sudden I am having trouble with good reader I am using it on ipad3 to review a bunch of scientific journal articles. Anyhow with each pdf file I chose 'Create annotated copy' with my first annotation of the file. All of a sudden Goodreader is refusing to create the copy and is giving my the error "Failed copying file" with the message 'Please see if you have enough free disk space' I do have enough free disk space. Nothing else has been changed recently. No new apps or anything. What is going on here ? Help please I havne't time for this ****!