throw new ExtractException(e);
        }
        return buf.toString();
    }

    /**
     * Appends attachment content to the buffer if it can be extracted.
     *
     * @param buf the buffer to append content to
     * @param bodyPart the body part containing the attachment
     */
    protected void appendAttachment(final StringBuilder buf, final BodyPart bodyPart) {

        final String name = pi.getName();
        final String encodedName = URLEncoder.encode(name, Constants.UTF_8_CHARSET).replace("+", "%20");
        response.header("Content-Disposition", "attachment; filename=\"" + name + "\"; filename*=utf-8''" + encodedName);
        response.header("Pragma", "no-cache");
        response.header("Cache-Control", "no-cache");

 * document and includes it in the extraction result.
 *
 * <p>Features:
 * <ul>
 *   <li>Text extraction from PDF pages</li>
 *   <li>Embedded document extraction</li>
 *   <li>Annotation extraction (file attachments)</li>
 *   <li>Metadata extraction</li>
 *   <li>Password-protected PDF support</li>
 *   <li>Configurable timeout for extraction process</li>
 * </ul>
 *
 * @author shinsuke
 */