[FF7]Edit the extracted map PNGs to return them to their original location

[Ditan]

The map image extracted by Palmer (0.8b) was edited and cleaned up,
but when I tried to save it,
it was only PNG data. Is there a good way to convert to the original file?

https://i.imgur.com/4d3ZzQO.jpg

I can't use Reunion, Game Converter or 7th Heaven on the Japanese version.