A DJVU file is a compressed image format developed by AT&T and marketed by LizardTech. It contains a scanned document, which may include text, images, or drawings.
DJVU files are designed to allow content developers to scan high-resolution color pages of books, magazines, comics, catalogs, etc. and publish them on the web.
DJVU file open in WinDjView 2.1
The DJVU format was initially released in 1998 and has undergone several revisions, with the latest coming in 2005. The format is open and can compress color documents 5 to 10 times more than .JPEG or .GIF compression, and 3 to 8 times more than .TIFF compression for black and white documents.
Various programs can be used to open DJVU files, including WinDjView, DjVuLibre DjView, and MacDjView. These programs are all available for free.
NOTE: DjVu is pronounced "deja vu."