【實用生產應用app】pdf|最夯免費app-綠色工廠好玩App

The most simple and powerful pdf viewer application. It's made after an open source (credit to the author), but it was lighten up, added root support and was improved where bugs used to hang out.

Some features are: search, bookmark, full screen, portrait, day/night mode, auto/manual crop, page split, zoom, browse (normal/root modes), backup etc.