Using DjVu Solo or similar programs one can create DjVu publications from JPEG sources.
Convert JPEG bitmap image format to DjVu image.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert jpg to djv on Windows
A program for making DJVU images
Convert from jpg file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.