A modified version of bookr.

Changelog:
* Support much more PDFs (with large images, JPEG2000, JBIG2, AES-encrpted, etc.)
* Support PDF Outlines
* Unicode support in PDF, PDF Outlines and file chooser.
* Some new options to control scroll speed of d-pad and analog stick.
* A simple thumbnail to indicate current position in page.
* Zoom in to specified width and position.
* Bug fixes.