DAR Software today announced the release of PDF PROvider 4.0 the major upgrade of their power PDF processor for iPhones and iPads. Among others, the major upgrade adds web extension and makes the app run smoothly on iOS 8 the latest release of the Apple mobile operating system. The app offers a broad range of editing capabilities including complete annotation tools. Version 4.0 has become critical for iPhone users and marks the new milestone in the application's life cycle.