Chrome PDF Viewer Plug-in is a built-in PDF viewer in chrome. Developed by Google
License: Free
Apps available for Mac OS X Windows Linux Google Chrome
RepliGo Reader enables PDF viewing, annotating, printing and form filling. Developed by Cerience Corporation
License: Commercial
Apps available for Android Blackberry
Chrome PDF Viewer is a lightweight tool ideal for quick PDF viewing and basic annotations, while RepliGo Reader offers extensive PDF editing capabilities and offline access, making it better suited for users who need more advanced features.