>JPEG2000 certainly has its fans, but I'm not one of them. Our experience has 
>been that we have not found a fully working open-source JPEG2000 decoder. It 
>>remains an open issue for PDFBox. Couple that with the difficulty of encoding 
>the format means there's a non-zero chance that you're creating bad archive 
>>files, and combine it with the fact that the reference implementation itself 
>is broken, the spec is nearly impossible to understand, and the patent 
>situation is >unclear and you're looking at a pretty risky file format unless 
>you're prepared to pay for propitiatory encoders/decoders.

This is true. I have to add that the jai encoder (jj2000) is also broken in 
encoding RGB images (need to be converted to BGR images), an easy task yet a 
broken implementation it is.



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