Generally speaking, various bitmap images (including .pmg and .jpg files) can be converted between each other or even to another format either with a graphical editor (via save function) with with a dedicated image conversion utility. Some of the suitable programs are listed below.
Found 2 different conversion types using the same filename extensions.
Conversion pmg to jpg type 1:
Convert from Paint Magic image file to JPEG bitmap image format.
Multiplatform software - convert pmg to jpg on any platform
A popular utility for viewing and converting graphic files
File type (from-> to)
Convert from pmg file format
Paint Magic image file
|Yes, XnView MP supports pmg file conversion as a source file type.||No||No||No||No||No||No||No|
JPEG bitmap image format
|Yes, XnView MP supports jpg file conversion as a target file type.||No||No||No||No||No||No||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 pmg to jpg. 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.
Conversion pmg to jpg type 2:
Convert from Adobe Photoshop photomerge panoramic composition to JPEG bitmap image format.
Microsoft Windows software - convert pmg to jpg on Windows
One of the best bitmap graphic editing program
Apple macOS / Mac OS X software - convert pmg to jpg on OS X
Mac version of popular digital image editor