User1417933 84522 gold badges1111 silver badges1414 bronze badges 1 There look like python bindings to ImageMagick: imagemagick.org/down load/python. I have never used them, but I've made use of ImageMagick, and it'll do what you want. user1342784 From there, it had been only a short solution to use the aforementioned equation https://gunneruyhkf.verybigblog.com/37794006/considerations-to-know-about-image-to-heic