* @param bodyPart the body part containing the attachment
     */
    protected void appendAttachment(final StringBuilder buf, final BodyPart bodyPart) {
        final MimeTypeHelper mimeTypeHelper = getMimeTypeHelper();
        final ExtractorFactory extractorFactory = getExtractorFactory();
        try {
            final String filename = getDecodeText(bodyPart.getFileName());

     */
    protected void extractFile(final String filename, final PDEmbeddedFile embeddedFile, final StringWriter writer) {
        final MimeTypeHelper mimeTypeHelper = getMimeTypeHelper();
        final ExtractorFactory extractorFactory = getExtractorFactory();
        final String mimeType = mimeTypeHelper.getContentType(null, filename);
        if (mimeType != null) {