diff --git a/Documentation/Makefile b/Documentation/Makefile
index 36feb34a6d..77f9b94130 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -1,3 +1,23 @@
+##############################################################################
+# Documentation/Makefile
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+##############################################################################
+
 # Minimal makefile for Sphinx documentation
 #
 
diff --git a/Documentation/_static/custom.css b/Documentation/_static/custom.css
index 6a939f8b94..c37e164662 100644
--- a/Documentation/_static/custom.css
+++ b/Documentation/_static/custom.css
@@ -1,3 +1,23 @@
+/****************************************************************************
+ * Documentation/_static/custom.css
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
 /* Make content wider */
 
 .wy-nav-content {
diff --git a/Documentation/_templates/layout.html b/Documentation/_templates/layout.html
index 43342ffa34..2a3ebcdaf1 100644
--- a/Documentation/_templates/layout.html
+++ b/Documentation/_templates/layout.html
@@ -1,3 +1,22 @@
+<!--
+ Documentation/_templates/layout.html
+
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements.  See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.  The
+ ASF licenses this file to you under the Apache License, Version 2.0 (the
+ "License"); you may not use this file except in compliance with the
+ License.  You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ License for the specific language governing permissions and limitations
+ under the License.
+-->
+
 {% extends "!layout.html" %}
 {% block sidebartitle %}
   {% if logo and theme_logo_only %}
diff --git a/Documentation/conf.py b/Documentation/conf.py
index ab828e6970..0c05044eb8 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -1,3 +1,23 @@
+##############################################################################
+# Documentation/conf.py
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+##############################################################################
+
 # Configuration file for the Sphinx documentation builder.
 #
 # This file only contains a selection of the most common options. For a full