diff --git a/lib/captcha/captcha.class.php b/lib/captcha/captcha.class.php
index 3de2847b30..5eb929fcb0 100644
--- a/lib/captcha/captcha.class.php
+++ b/lib/captcha/captcha.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "Captcha" (MIT, see
+ * </lib/vendor/gregwar/captcha/LICENSE>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class captcha extends baseDelegate
diff --git a/lib/crontab/crontab.class.php b/lib/crontab/crontab.class.php
index 30454474bd..fe7125272a 100644
--- a/lib/crontab/crontab.class.php
+++ b/lib/crontab/crontab.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "cron-expression" (MIT, see
+ * </lib/vendor/dragonmantank/cron-expression/LICENSE>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class crontab extends baseDelegate
diff --git a/lib/diff/diff.class.php b/lib/diff/diff.class.php
index b78acd676a..334d4393ba 100644
--- a/lib/diff/diff.class.php
+++ b/lib/diff/diff.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "PHP-FineDiff" (MIT, see
+ * </lib/vendor/gorhill/php-fine-diff/README>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class diff extends baseDelegate
diff --git a/lib/mobile/mobile.class.php b/lib/mobile/mobile.class.php
index 2f8c600358..259f833fee 100644
--- a/lib/mobile/mobile.class.php
+++ b/lib/mobile/mobile.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "Mobile-Detect" (MIT, see
+ * </lib/vendor/mobiledetect/mobiledetect/LICENSE>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class mobile extends baseDelegate
diff --git a/lib/parsedown/parsedown.class.php b/lib/parsedown/parsedown.class.php
index c2cb48ea4a..9a8fbd3b88 100644
--- a/lib/parsedown/parsedown.class.php
+++ b/lib/parsedown/parsedown.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "parsedown" (MIT, see
+ * </lib/vendor/erusev/parsedown/LICENSE.txt>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class parsedown extends baseDelegate
diff --git a/lib/pclzip/pclzip.class.php b/lib/pclzip/pclzip.class.php
index f876afe249..4ec4937796 100644
--- a/lib/pclzip/pclzip.class.php
+++ b/lib/pclzip/pclzip.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "PclZip" (LGPL, see
+ * </lib/vendor/pclzip/pclzip/gnu-lgpl.txt>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class pclzip extends baseDelegate
diff --git a/lib/phpexcel/phpexcel.class.php b/lib/phpexcel/phpexcel.class.php
index 9699172bae..e491f64b63 100644
--- a/lib/phpexcel/phpexcel.class.php
+++ b/lib/phpexcel/phpexcel.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "PhpSpreadsheet" (LGPL, see
+ * </lib/vendor/phpoffice/phpspreadsheet/LICENSE>).
+ */
+
 use PhpOffice\PhpSpreadsheet\IOFactory;
 use PhpOffice\PhpSpreadsheet\Reader\Exception as ReaderException;
 use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;
diff --git a/lib/phpmailer/phpmailer.class.php b/lib/phpmailer/phpmailer.class.php
index c49c634809..0a2cabd381 100644
--- a/lib/phpmailer/phpmailer.class.php
+++ b/lib/phpmailer/phpmailer.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "PHPMailer" (LGPL, see
+ * </lib/vendor/phpmailer/phpmailer/LICENSE>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class phpmailer extends baseDelegate
diff --git a/lib/phpthumb/phpthumb.class.php b/lib/phpthumb/phpthumb.class.php
index 2d48654006..0794c616a1 100644
--- a/lib/phpthumb/phpthumb.class.php
+++ b/lib/phpthumb/phpthumb.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "PHPThumb" (MIT, see
+ * <https://opensource.org/license/mit>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class phpthumb extends baseDelegate
diff --git a/lib/phpword/phpword.class.php b/lib/phpword/phpword.class.php
index 968d4b8c9c..de38a0a2e7 100644
--- a/lib/phpword/phpword.class.php
+++ b/lib/phpword/phpword.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "PHPWord" (LGPL, see
+ * </lib/vendor/phpoffice/phpword/COPYING>).
+ */
+
 require_once __DIR__ . '/h2d_htmlconverter.php';
 require_once __DIR__ . '/simple_html_dom.php';
 require_once __DIR__ . '/styles.php';
diff --git a/lib/pinyin/pinyin.class.php b/lib/pinyin/pinyin.class.php
index f5be15bd1c..22b37fa39e 100644
--- a/lib/pinyin/pinyin.class.php
+++ b/lib/pinyin/pinyin.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "pinyin" (MIT, see
+ * </lib/vendor/overtrue/pinyin/LICENSE>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class pinyin extends baseDelegate
diff --git a/lib/purifier/purifier.class.php b/lib/purifier/purifier.class.php
index 2672983676..d21314a4f3 100644
--- a/lib/purifier/purifier.class.php
+++ b/lib/purifier/purifier.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "htmlpurifier" (LGPL, see
+ * </lib/vendor/ezyang/htmlpurifier/LICENSE>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class purifier extends baseDelegate
diff --git a/lib/requests/requests.class.php b/lib/requests/requests.class.php
index bdad8b012a..1a1bd613c5 100644
--- a/lib/requests/requests.class.php
+++ b/lib/requests/requests.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "Requests" (ISC, see
+ * </lib/vendor/rmccue/requests/LICENSE>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class requests extends baseDelegate
diff --git a/lib/spout/spout.class.php b/lib/spout/spout.class.php
index 356b4a78ae..c12f7f4c30 100644
--- a/lib/spout/spout.class.php
+++ b/lib/spout/spout.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "spout" (Apache, see
+ * </lib/vendor/box/spout/LICENSE>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class spout extends baseDelegate
diff --git a/lib/spyc/spyc.class.php b/lib/spyc/spyc.class.php
index bc6dfdbe58..2f17c83fd5 100644
--- a/lib/spyc/spyc.class.php
+++ b/lib/spyc/spyc.class.php
@@ -1,4 +1,16 @@
 <?php
+/**
+ * ZenTaoPMS - Open-source project management system.
+ *
+ * @copyright Copyright 2009-2025 禅道软件（青岛）有限公司(ZenTao Software (Qingdao) Co., Ltd. www.chandao.com)
+ * @license   ZPL(http://zpl.pub/page/zplv12.html) or AGPL(https://www.gnu.org/licenses/agpl-3.0.en.html)
+ *
+ * A third-party license is embedded for some of the code in this file:
+ * The use of the source code of this file is also subject to the terms
+ * and consitions of the license of "spyc" (MIT, see
+ * </lib/vendor/mustangostang/spyc/COPYING>).
+ */
+
 require_once dirname(__FILE__, 2) . '/base/delegate/delegate.class.php';
 
 class spyc extends baseDelegate