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0001 <?php
0002 /**
0003  * Zend Framework
0004  *
0005  * LICENSE
0006  *
0007  * This source file is subject to the new BSD license that is bundled
0008  * with this package in the file LICENSE.txt.
0009  * It is also available through the world-wide-web at this URL:
0010  * http://framework.zend.com/license/new-bsd
0011  * If you did not receive a copy of the license and are unable to
0012  * obtain it through the world-wide-web, please send an email
0013  * to license@zend.com so we can send you a copy immediately.
0014  *
0015  * @category   Zend
0016  * @package    Zend_Pdf
0017  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
0018  * @license    http://framework.zend.com/license/new-bsd     New BSD License
0019  * @version    $Id$
0020  */
0021 
0022 /**
0023  * PDF stream filter
0024  *
0025  * @package    Zend_Pdf
0026  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
0027  * @license    http://framework.zend.com/license/new-bsd     New BSD License
0028  */
0029 interface Zend_Pdf_Filter_Interface
0030 {
0031     /**
0032      * Encode data
0033      *
0034      * @param string $data
0035      * @param array $params
0036      * @return string
0037      * @throws Zend_Pdf_Exception
0038      */
0039     public static function encode($data, $params = null);
0040 
0041     /**
0042      * Decode data
0043      *
0044      * @param string $data
0045      * @param array $params
0046      * @return string
0047      * @throws Zend_Pdf_Exception
0048      */
0049     public static function decode($data, $params = null);
0050 }