diff --git a/extensions/sbb-pdf-exporter/DBS Stylesheet.css b/extensions/sbb-pdf-exporter/DBS Stylesheet.css
index e94bc03..51edd50 100644
--- a/extensions/sbb-pdf-exporter/DBS Stylesheet.css	
+++ b/extensions/sbb-pdf-exporter/DBS Stylesheet.css	
@@ -1,3 +1,8 @@
+/*
+    SPDX-FileCopyrightText: Copyright DB InfraGO AG and contributors
+    SPDX-License-Identifier: Apache-2.0
+*/
+
 /* FONT DEFINITIONS */
 @font-face {
     font-family: "Open Sans";
@@ -1115,4 +1120,4 @@ table.polarion-rp-column-layout td {
 #polarion-rp-parameters,
 #polarion-rp-page-script {
     display: none;
-}
\ No newline at end of file
+}
diff --git a/extensions/sbb-pdf-exporter/cover.html b/extensions/sbb-pdf-exporter/cover.html
index 8229b91..ed7532e 100644
--- a/extensions/sbb-pdf-exporter/cover.html
+++ b/extensions/sbb-pdf-exporter/cover.html
@@ -1,3 +1,5 @@
+<!-- SPDX-FileCopyrightText: Copyright DB InfraGO AG and contributors
+SPDX-License-Identifier: Apache-2.0 -->
 <article id="cover">
   <div id="top"></div>
   <div id="center">
diff --git a/extensions/sbb-pdf-exporter/weasyprint.dockerfile b/extensions/sbb-pdf-exporter/weasyprint.dockerfile
index a234150..d8b3a86 100644
--- a/extensions/sbb-pdf-exporter/weasyprint.dockerfile
+++ b/extensions/sbb-pdf-exporter/weasyprint.dockerfile
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Copyright DB InfraGO AG and contributors
+# SPDX-License-Identifier: Apache-2.0
+
 FROM python:3.12.3-slim
 LABEL maintainer="Polarion Team at SBB <polarion-opensource@sbb.ch>"