Resize and Optimize Image

resizeOptimize.swift

func resizedAndOptimizedImageData(from data: Data, maxWidth: CGFloat = 1000) -> Data? {
    guard let image = UIImage(data: data) else { return nil }

    let originalSize = image.size
    let scaleFactor = min(1, maxWidth / originalSize.width)
    let newSize = CGSize(
        width: originalSize.width * scaleFactor,
        height: originalSize.height * scaleFactor
    )

    UIGraphicsBeginImageContextWithOptions(newSize, false, 1)
    image.draw(in: CGRect(origin: .zero, size: newSize))
    let resizedImage = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()

    return resizedImage?.jpegData(compressionQuality: 0.8)
}