swift decrease image size
let actualHeight:CGFloat = image.size.height let actualWidth:CGFloat = image.size.width let imgRatio:CGFloat = actualWidth/actualHeight let maxWidth:CGFloat = 1024.0 let resizedHeight:CGFloat = maxWidth/imgRatio let compressionQuality:CGFloat = 0.5 let rect:CGRect = CGRect(x: 0, y: 0, width: maxWidth, height: resizedHeight) UIGraphicsBeginImageContext(rect.size) image.draw(in: rect) let img: UIImage = UIGraphicsGetImageFromCurrentImageContext()! let imageData:Data = UIImageJPEGRepresentation(img, compressionQuality)! UIGraphicsEndImageContext() return UIImage(data: imageData)!