Adobe added JXL as a compression option for the DNG format last year. Previous options were JPEG, Lossless JPEG, Deflate, and nothing. Apple used Lossless JPEG.

Adobe added JXL as a compression option for the DNG format last year. Previous options were JPEG, Lossless JPEG, Deflate, and nothing. Apple used Lossless JPEG. Apple engineers have decided to take advantage of the option Adobe added last year to make their DNG files smaller.