在删除其他元数据的同时保留MakerApple元数据

Question

我正在使用以下代码从图片中删除元数据：

    fileprivate func removeMetadataFromData(data: Data) -> NSMutableData? {

        guard let source = CGImageSourceCreateWithData(data as CFData, nil) else {return nil}
        guard let type = CGImageSourceGetType(source) else {return nil}

        let count = CGImageSourceGetCount(source)
        let mutableData = NSMutableData(data: data)
        guard let destination = CGImageDestinationCreateWithData(mutableData, type, count, nil) else {return nil}
        let newProperties: CFDictionary = [String(kCGImagePropertyExifDictionary) : kCFNull, String(kCGImagePropertyGPSDictionary): kCFNull] as CFDictionary


        for i in 0..<count {
            CGImageDestinationAddImageFromSource(destination, source, i, properties)
        }

        guard CGImageDestinationFinalize(destination) else {return nil}

        return mutableData
    }

这应该只从原始照片中删除Exif和Location字典，但同时也删除了我想要保留的MakerApple字典。

我尝试像这样将其添加回去：

let oldImageProperties = CGImageSourceCopyPropertiesAtIndex(source, 0, nil) as Dictionary?
let makerAppleData = imageProperties?[kCGImagePropertyMakerAppleDictionary] as? NSMutableDictionary
let newProperties: CFDictionary = [String(kCGImagePropertyExifDictionary) : kCFNull, String(kCGImagePropertyGPSDictionary): kCFNull, String(kCGImagePropertyMakerAppleDictionary):makerAppleData] as CFDictionary

，但不会将其添加回去。有解决方案吗？