Compress image size (Swift)

UIImage+CGSize+Extensions

extension CGSize {
// get scale of image size with max dimention
    public func scale(max: CGFloat) -> CGFloat {
        if width > height{
            if width > max {
                return max / width
            }
        } else {
            if height > max {
                return max / height
            }
        }
        return 1

    }
}

extension UIImage {
// resize image with max dimention option
   public func resize(to maxDimention: CGFloat) -> UIImage {
        let aspect = self.size.scale(max: maxDimention)
        let newHeight = self.size.height * aspect
        let newWidth = self.size.width * aspect

        UIGraphicsBeginImageContext(CGSize(width: newWidth, height: newHeight))
        self.draw(in: CGRect(x: 0, y: 0, width: newWidth, height: newHeight))
        let newImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return newImage!
    }
}