How to convert all image format into .png format?

Question

I am making a small application where I am receiving images from web-service. I am getting the image url. And the format of images is different different like .jpg,.gif,.png

Answer 1

after you retrieve your images/url save them this way:

NSData *imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:YES];