We are currently evaluating groupdocs viewer and annotation using .Net libraries. We also have hybrid mobile application. In this mobile app, we need to provide functionalities like,
1. Open files from device in document viewer
2. Annotate the file and save it on device.
We have following questions to ask,
1. How to render document viewer control using JS API without .Net/JAVA libraries?
2. Offline mobile app support by groupdocs.