NSAttributedString from RTFD document format

RFTD.m

    UIPasteboard *pboard = [UIPasteboard generalPasteboard];
    NSData *data = [pboard valueForPasteboardType:@"com.apple.flat-rtfd"];
    NSAttributedString *aString = [[NSAttributedString alloc] initWithData:data
                                                                   options:@{NSDocumentTypeDocumentAttribute: NSRTFDTextDocumentType}
                                                        documentAttributes:nil
                                                                     error:nil];
    NSLog(@"%@", aString);