Whilst it is probably possible to make a JPG to JPX conversion in one of the graphics editors or converters, it will be useless. That is because JPEG 2000 (*.jpx) is more sophisticated format and thus has more data when you record in that format, so converting into it from inferior format won't do any good. You need to find RAW source of the JPG image if you want to create a proper JPEG 2000 image.
Convert JPEG bitmap image format to JPEG 2000 extended image format (ISO 15444-2).
We found 5 software records in the database related to .jpg to .jpx file format conversion.
Microsoft Windows software - convert jpg to jpx on Windows
One of the best bitmap graphic editing program
Convert from jpg file format
|Yes, Adobe Photoshop supports jpg file conversion as a source file type.||Yes||Yes||jpg editor||Yes||No||No||No|
|Yes, Adobe Photoshop supports jpx file conversion as a target file type.||Yes||Yes||jpx editor||No||Yes||Yes||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned jpg to jpx. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A photo editing software distributed as a part of CorelDRAW
A professional photo editor and manager for Windows
Apple macOS / Mac OS X software - convert jpg to jpx on OS X
Mac version of popular digital image editor
Mac version of Adobe's vector graphics editor