Educators can create interactive textbooks from PDF documents with new software from YUDU Media. The conversion technology allows readers to bookmark and annotate content as well as read across platforms such as PCs and iPads. "Students may need to read and take notes on a Windows PC in the classroom, but then want to pick up where they left off on their iPad at home," said YUDU CEO Richard Stephenson. "With most publishing platforms, this is impossible. YUDU makes it possible."