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I am one of the four persons who created DjVu in the first place. The events took place in AT&T-Labs Research between 1997 and 1999.

1. There is Linux support. Just go to the download page and select the Linux platform. Most of DjVu was first coded under Linux.
2. After the Lizardtech deal, we set up a "non commercial site" named DjVuZone. It contains general information, benchmarks. links, a searchable digital library, etc.
3. There is source code. Lizardtech recently had the good idea to relicense version 2 of the DjVu reference library under the GPL. We have the corresponding online documentation on DjVuZone. We are just waiting for the release of version 3 to redo that part of the site.
4. DjVu combines several new technologies including new approaches to arithmetic coding (Z'-coder), new compression methods for textual images (Soft pattern matching, JB2), new wavelet method (IW44), and new ways of combining them together. The current implementation is geared toward compressing scanned document images in 24 bit colors around 300 dpi (raw size is 25MB) and typically packs them into 50-60KB. Neither TIFF, nor JPEG, nor JPEG-2000 nor Fax-G4 can do that. None of these technologies will let you realistically view such documents over the web. DjVu can.

Hope this helps :-).

- Leon Bottou, AT&T-Labs Research.

I am one of the four persons who created DjVu in the first place. The events took place in AT&T-Labs Research between 1997 and 1999.

1. There is Linux support. Just go to the download page and select the Linux platform. Most of DjVu was first coded under Linux.
2. After the Lizardtech deal, we set up a "non commercial site" named DjVuZone. It contains general information, benchmarks. links, a searchable digital library, etc.
3. There is source code. Lizardtech recently had the good idea to relicense version 2 of the DjVu reference library under the GPL. We have the corresponding online documentation on DjVuZone. We are just waiting for the release of version 3 to redo that part of the site.
4. DjVu combines several new technologies including new approaches to arithmetic coding (Z'-coder), new compression methods for textual images (Soft pattern matching, JB2), new wavelet method (IW44), and new ways of combining them together. The current implementation is geared toward compressing scanned document images in 24 bit colors around 300 dpi (raw size is 25MB) and typically packs them into 50-60KB. Neither TIFF, nor JPEG, nor JPEG-2000 nor Fax-G4 can do that. None of these technologies will let you realistically view such documents over the web. DjVu can.

Hope this helps :-).

- Leon Bottou, AT&T-Labs Research.

I am one of the four persons who created DjVu in the first place. The events took place in AT&T-Labs Research between 1997 and 1999.

1. There is Linux support. Just go to the download page and select the Linux platform. Most of DjVu was first coded under Linux.
2. After the Lizardtech deal, we set up a "non commercial site" named DjVuZone. It contains general information, benchmarks. links, a searchable digital library, etc.
3. There is source code. Lizardtech recently had the good idea to relicense version 2 of the DjVu reference library under the GPL. We have the corresponding online documentation on DjVuZone. We are just waiting for the release of version 3 to redo that part of the site.
4. DjVu combines several new technologies including new approaches to arithmetic coding (Z'-coder), new compression methods for textual images (Soft pattern matching, JB2), new wavelet method (IW44), and new ways of combining them together. The current implementation is geared toward compressing scanned document images in 24 bit colors around 300 dpi (raw size is 25MB) and typically packs them into 50-60KB. Neither TIFF, nor JPEG, nor JPEG-2000 nor Fax-G4 can do that. None of these technologies will let you realistically view such documents over the web. DjVu can.

Hope this helps :-).

- Leon Bottou, AT&T-Labs Research.