public static void InsertAPicture(WordprocessingDocument wordprocessingDocument, MainDocumentPart mainPart, string fileName)
    {
        ImagePart imagePart = mainPart.AddImagePart(ImagePartType.Jpeg);
        System.Drawing.Image img = System.Drawing.Image.FromFile(fileName);
        var width = img.Width;
        var height = img.Height;
        img.Dispose();

        using (FileStream stream = new FileStream(fileName, FileMode.Open))
        {
            imagePart.FeedData(stream);
        }

        AppenderToDoc.AddImageToBody(wordprocessingDocument, mainPart.GetIdOfPart(imagePart), width, height);
        mainPart.Document.Body.AppendChild(new Paragraph());
    }