It seems like PJPEG is just another variant of file extension for common JPEGs, so you may as well try to simply rename PJPEG to JPEG. Some programs like Photoshop list this file type as supported and can work with that normally, but that is probably just because it is a normal JPEG, just with different extension.
Convert JPEG image to JPEG bitmap image format.
We found 2 software records in the database related to .pjpeg to .jpeg file format conversion.
Microsoft Windows software - convert pjpeg to jpeg on Windows
One of the best bitmap graphic editing program
Convert from pjpeg file format
|Yes, Adobe Photoshop supports jpeg file conversion as a target file type.||Yes||Yes||jpeg editor||Yes||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 pjpeg to jpeg. 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.
Apple macOS / Mac OS X software - convert pjpeg to jpeg on OS X
Mac version of popular digital image editor