diff --git a/Classes/Configuration/ExtensionConfiguration.php b/Classes/Configuration/ExtensionConfiguration.php
index ba15e3ef7c4dc5418625b6d968b0e1b074e4ce49..cbd109a2fd43de54257da5dc99e2352e357bfefc 100644
--- a/Classes/Configuration/ExtensionConfiguration.php
+++ b/Classes/Configuration/ExtensionConfiguration.php
@@ -3,7 +3,14 @@
 declare(strict_types=1);
 
 /*
- * This file is part of the "gsb_metadata_cleaner" Extension for TYPO3 CMS.
+ * This file is part of the package itzbund/gsb-metadata-cleaner of the GSB 11 Project by ITZBund.
+ *
+ * Copyright (C) 2023 - 2024 Bundesrepublik Deutschland, vertreten durch das
+ * BMI/ITZBund. Author: Ole Hartwig, Patrick Schriner
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
  *
  * For the full copyright and license information, please read the
  * LICENSE file that was distributed with this source code.
diff --git a/Classes/EventListener/BeforeFileAddedEventListener.php b/Classes/EventListener/BeforeFileAddedEventListener.php
index c488ad264e63225b5fdf6dcc62e0824057ca72d6..0a2e114f7ae3f9f0a13b7a4664452ffe50b69c26 100644
--- a/Classes/EventListener/BeforeFileAddedEventListener.php
+++ b/Classes/EventListener/BeforeFileAddedEventListener.php
@@ -5,8 +5,8 @@ declare(strict_types=1);
 /*
  * This file is part of the package itzbund/gsb-metadata-cleaner of the GSB 11 Project by ITZBund.
  *
- * (c) Ole Hartwig <o.hartwig@moselwal.de> 2023
- * (c) Patrick Schriner <patrick.schriner@diemedialen.de> 2023
+ * Copyright (C) 2023 - 2024 Bundesrepublik Deutschland, vertreten durch das
+ * BMI/ITZBund. Author: Ole Hartwig, Patrick Schriner
  *
  * It is free software; you can redistribute it and/or modify it under
  * the terms of the GNU General Public License, either version 2
diff --git a/Classes/Service/ExifToolService.php b/Classes/Service/ExifToolService.php
index 542105d5bf24aa8253da8a22686e6ff4c4afd719..0b679553bb0334d8ae96fdf252ed7982b7a401a1 100644
--- a/Classes/Service/ExifToolService.php
+++ b/Classes/Service/ExifToolService.php
@@ -5,8 +5,8 @@ declare(strict_types=1);
 /*
  * This file is part of the package itzbund/gsb-metadata-cleaner of the GSB 11 Project by ITZBund.
  *
- * (c) Ole Hartwig <o.hartwig@moselwal.de> 2023
- * (c) Patrick Schriner <patrick.schriner@diemedialen.de> 2023
+ * Copyright (C) 2023 - 2024 Bundesrepublik Deutschland, vertreten durch das
+ * BMI/ITZBund. Author: Ole Hartwig, Patrick Schriner
  *
  * It is free software; you can redistribute it and/or modify it under
  * the terms of the GNU General Public License, either version 2