The PDF-XChange Editor is smaller, faster and more feature rich than any other FREE PDF Reader/ PDF Viewer/ PDF Editor available on the market. Designed for anyone from home users to large corporate environments that wish to View/Edit/Modify and even OCR Image based PDF files on their Windows PC’s. The smallest, fastest, most feature-rich PDF editor/viewer available! Create, View, Edit, Annotate, OCR and Digitally Sign PDF files plus much more.