User1417933 84522 gold badges1111 silver badges1414 bronze badges one There look like python bindings to ImageMagick: imagemagick.org/down load/python. I haven't used them, but I have utilized ImageMagick, and it will do what you wish. user1342784 In seconds, you are able to transform your JPEG images to PNG structure using this https://imageconverthq.com/