[2] The control system include: -two long buttons to the right of the screen (in standard portrait mode) to handle page navigation.
It has an accelerometer that allows it to switch from portrait to landscape mode automatically (if the option is enabled), which will appeal equally to left and right-handed readers.
While reading and also in the “Library”, keeping next/previous page button pressed will enter the fast pagination mode.
To charge the device, you use the same included USB cable that you use for transferring content to it (either via free Adobe Digital Editions software or by dragging and dropping to storage).
Text formats : Adobe ePub / PDF (native or DRM-protected), TXT, FictionBook (.fb2) and HTML files without any conversions.
Image formats (black and white): JPEG, GIF and PNG The Cybook technically supports PDF files, however it doesn't actually reflow text.
Current firmware revisions support ten levels of zoom and allow scrolling around the page, making the device suitable for reading many PDF files.
The Cybook Opus runs Linux as its underlying operating system; however, the firmware is open source but not the application.