DjVu is a web-centric format and software platform for distributing documents and images. DjVu can advantageously replace PDF, PS, TIFF, JPEG, and GIF for distributing scanned documents, digital documents, or high-resolution pictures. DjVu content downloads faster, displays and renders faster, looks nicer on a screen, and consume less client resources than competing formats. DjVu images display instantly and can be smoothly zoomed and panned with no lengthy re-rendering. DjVu is used by hundreds of academic, commercial, governmental, and non-commercial web sites around the world.

DjVuLibre includes a standalone viewer, a browser plug-in (for Mozilla, Firefox, Konqueror, Netscape, Galeon, and Opera), and command line tools (decoders, encoders, utilities). DjVuLibre works under Unix with X11.

Here is a non exhaustive list of the commands included with DjVuLibre:
• c44: a wavelet-based continuous-tone image encoder (à la JPEG-2000).
• cjb2: single page encoder for bitonal images (black and white scans).
• cpaldjvu: encoder for palettized images (a la GIF, but better).
• bzz: a general-purpose data compressor (a la bzip2).
• djvused: a powerful command interpreter for manipulating DjVu documents.
• ddjvu: converts DjVu documents to PBM/PGM/PPM images.
• djvudump: displays the structure of a DjVu file.
• djvuextract: extracts chunks from a DjVu file.
• djvumake: assemble chunks into a DjVu file
• djvutxt: extract the "hidden text" from a previously OCRed DjVu document.

Requirements:
OS X 10.4-10.6
Universal Binary