jpf to cdr conversion is most likely searched by users looking for a way to either import JPEG 2000 pictures to CorelDRAW or direct conversion to CDR format. In any case, you have to really use CorelDRAW because not many alternative graphics editors support CDR format. Some online converters claim to offer this export, but typically Corel's formats are rarely supported in 3rd party software or solutions.
Updated: July 31, 2023