1<?php
2/**
3 * This file is part of FPDI
4 *
5 * @package   setasign\Fpdi
6 * @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
7 * @license   http://opensource.org/licenses/mit-license The MIT License
8 */
9
10namespace setasign\Fpdi\PdfParser\Filter;
11
12/**
13 * Interface for filters
14 *
15 * @package setasign\Fpdi\PdfParser\Filter
16 */
17interface FilterInterface
18{
19    /**
20     * Decode a string.
21     *
22     * @param string $data The input string
23     * @return string
24     */
25    public function decode($data);
26}
27