J2K-Codec : JPEG2000 software decoder

Q: Why do I need JPEG2000?

A: Please read this for a detailed explanation.

Q: What sources of data does your codec support? Can it read, for example, from a memory buffer?

A: Yes. It can read from a file, memory buffer, exe-file resource or any custom data source.

Q: What is the licensing policy?

A: To put it simply, the registration is per developer (either an individual or organization). After you have purchased J2K-Codec, you can use it in as many projects as you want.

Q: What should I do with my personal registration key?

A: Store it in a secure place and never give to anyone. The registration key is used to remove demo version restrictions. See the help file for more information.

Q: I can't view the help file!

A: http://support.microsoft.com/kb/2021383

Q: Does J2K-Codec have backward compatibility with the old JPEG files?

A: No. JPEG2000 is a revolutionary standard that changed almost everything. To support old JPEG would require writing additional bunch of code. This would affect performance and increase price. There are other good, free JPEG libraries available.

Q: Can I link J2K-Codec statically?

A: Yes, you can. The static linking package consists of 12 LIB files (single-threaded / multithreaded / multithreaded DLL, release / debug, plus the same for 16-bit version) in MSVC6.0 format and 8 LIB files (multithreaded / multithreaded DLL, release / debug + 16-bit) in VS 2005 format.

Q: You keep calling it "codec", but (as I understand it) it's merely a decoder?

A: That's right. "J2K-Codec" is just a "reserved-for-the-future" kind of name.

Q: What about huge images?

A: J2K-Codec supports JPEG2000 files of up to 4 Gb in size.
The PRO version is limited to 65,535 × 65,535 resolution.

Huge files must be tiled because the decoding buffer has to fit into memory.

Q: What about source code?

A: Sorry, the source code is our know-how, and we don't plan to release it anytime soon.

Q: I found a bug. What should I do?

A: Send it! Send it to us! We are perfection freaks and enjoy every new bug or suggestion :-) Seriously, send it in.

Q: Where can I get more info?

A: Check out our More Info section, as well as these links.

And if you need something special—do not hesitate to ask!