How can I save one JPG files from UIImage data? not save to photoalbum

As title....

For example:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *jpegPath = [documentsDirectory stringByAppendingPathComponent:@"main.jpg"];
    UIImage *image = [info objectForKey:@"UIImagePickerControllerEditedImage"];
    [UIImageJPEGRepresentation(image, 1.0) writeToFile:jpegPath atomically:YES];

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How can I save one JPG files from UIImage data? not save to photoalbum

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