Not getting Updated TIFF Data of UIImage using ImageIO Framework - ios

Question

I am using ImageIO framework for updating metadata of UIImage then after I saved that image in my iphone photoLibrary my issue is that I am updating the Image TIFF data successfully in image but when I select that image for get TIFF data then it not displaying the TIFF dictionary data .online I can see updated TIFF data but in my code i can't see it.
Updated TIFF Data:
"{TIFF}" = {
Make = "test ";
Model = test;
Software = test;
};
Get updated Image metadata in iOS:
{
ColorModel = RGB;
Depth = 8;
PixelHeight = 2592;
PixelWidth = 1936;
"{PNG}" = {
InterlaceType = 0;
};
}
Code:
NSData *imageData = UIImagePNGRepresentation(image);
CGImageSourceRef imageSource = CGImageSourceCreateWithData((__bridge CFDataRef )imageData, NULL);
if (imageSource == NULL) {
// Error loading image
return nil;
}
//Set the object in dictinary
NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:NO], (NSString *)kCGImageSourceShouldCache,
nil];
CFDictionaryRef imageProperties = CGImageSourceCopyPropertiesAtIndex(imageSource, 0, (__bridge CFDictionaryRef)options);
//Device name
CFDictionaryRef refDeviceInfo = CFDictionaryGetValue(imageProperties, kCGImagePropertyTIFFDictionary);
if (refDeviceInfo) {
NSString *strMake = (NSString *)CFDictionaryGetValue(refDeviceInfo, kCGImagePropertyTIFFMake);
NSLog(#"Make: %#", strMake);
NSString *strModel = (NSString *)CFDictionaryGetValue(refDeviceInfo, kCGImagePropertyTIFFModel);
NSLog(#"Model: %#", strModel);
}