Orion Viewer is pdf, djvu, xps, cbz and tiff file viewer for Android devices based on mupdf and DjVuLibre libraries. Application features: Outline navigation Bookmarks support Page navigation by screen taps + Tap Zones + Key binding Text selection Single word selection by double tap with translation in external dictionary Custom zoom Custom manual and auto border crop Portrait/landscape orientation Support different navigation patterns inside page (left to right, right to left) External Dictionaries support Built-in file manager with recently opened file view