Fast, free viewer for files saved in a highly efficient DjVu (DjVu wu) image compression method. Documents saved in this format retain the exact appearance of the original with a relatively small file size. For example, a similarly scanned image saved in PDF takes 3 to 8 times more space than DjVu format.

The application uses a set of free DjVuLibre libraries offering functions such as displaying thumbnails, hyperlinks, searching and copying text, full screen mode, advanced printing, exporting pages to BMP format, enlarging pages or viewing a few files in bookmarks. On the homepage there is also a version for MS Windows 98/Me/NT, but it may be unstable.