Charts out of the GanttProjects projects files (.gan) can be exported and saved as separate images in one of the formats that the program supports, which includes JPEG images. No 3rd party program capable of working with .gan files is known to us, so this is likely the only choice for GAN to JPG conversion.
Convert GanttProject project plan to JPEG bitmap image format.
We have found one software suitable in our database for this conversion.
Multiplatform software - convert gan to jpg on any platform
GanttProject is a free cross-platform desktop tool for project scheduling and management available in Windows, Linux and Mac OS X versions.
Convert from gan file
to jpg file
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.