Is JPEG free software? There are no external rights or patents etc. of any kind to libjpeg now. Moreover, libjpeg is a library that is protected by copyright. Generally libjpeg can be used by any company free of licence fee. That is guaranteed by the JPEG licence. The licence is meant to prevent misuse of the library, such as non-documented origin or modifications. Libjpeg is recognized as open source, and … Continue reading JPEG FAQ