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Re: [Sheflug] PDF Tools



On Sat, Feb 04, 2023 at 01:22:57AM +0000, John Southern wrote:
DjVu has superior compression, but I think it is proprietary.

The DjVu spec is open, although I can’t find it on djvu.org there’s a copy on archive.org[1] (they used to support the format for uploads). According to Wikipedia there are, however, patents covering it[2].

[1]: https://archive.org/details/DjVu3Spec
[2]: https://en.wikipedia.org/wiki/DjVu#Format_licensing

Simon

--
A complex system that works is invariably found to have evolved from a
simple system that works.—John Gall

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