diff --git a/documentation/profile-manual/profile-manual-arch.xml b/documentation/profile-manual/profile-manual-arch.xml
index 19d1155229..8eb7bbfabd 100644
--- a/documentation/profile-manual/profile-manual-arch.xml
+++ b/documentation/profile-manual/profile-manual-arch.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <chapter id='profile-manual-arch'>
 
diff --git a/documentation/profile-manual/profile-manual-customization.xsl b/documentation/profile-manual/profile-manual-customization.xsl
index caa57ef342..d995e0b3cb 100644
--- a/documentation/profile-manual/profile-manual-customization.xsl
+++ b/documentation/profile-manual/profile-manual-customization.xsl
@@ -1,4 +1,6 @@
 <?xml version='1.0'?>
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
+
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns="http://www.w3.org/1999/xhtml" xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
 
   <xsl:import href="http://downloads.yoctoproject.org/mirror/docbook-mirror/docbook-xsl-1.76.1/xhtml/docbook.xsl" />
diff --git a/documentation/profile-manual/profile-manual-examples.xml b/documentation/profile-manual/profile-manual-examples.xml
index 9630c6c307..91e06fcd1c 100644
--- a/documentation/profile-manual/profile-manual-examples.xml
+++ b/documentation/profile-manual/profile-manual-examples.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <chapter id='profile-manual-examples'>
 
diff --git a/documentation/profile-manual/profile-manual-intro.xml b/documentation/profile-manual/profile-manual-intro.xml
index f16db3f0f2..a2d2f80ec0 100644
--- a/documentation/profile-manual/profile-manual-intro.xml
+++ b/documentation/profile-manual/profile-manual-intro.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <chapter id='profile-manual-intro'>
 
diff --git a/documentation/profile-manual/profile-manual-style.css b/documentation/profile-manual/profile-manual-style.css
index f3cca8536d..8502c11090 100644
--- a/documentation/profile-manual/profile-manual-style.css
+++ b/documentation/profile-manual/profile-manual-style.css
@@ -1,4 +1,7 @@
 /*
+
+   SPDX-License-Identifier: CC-BY-2.0-UK
+
    Generic XHTML / DocBook XHTML CSS Stylesheet.
 
    Browser wrangling and typographic design by
diff --git a/documentation/profile-manual/profile-manual-usage.xml b/documentation/profile-manual/profile-manual-usage.xml
index 9a4273a0fe..3a7148cbd3 100644
--- a/documentation/profile-manual/profile-manual-usage.xml
+++ b/documentation/profile-manual/profile-manual-usage.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <chapter id='profile-manual-usage'>
 
diff --git a/documentation/profile-manual/profile-manual.xml b/documentation/profile-manual/profile-manual.xml
index fa1fa8ac80..48bfba5b8f 100755
--- a/documentation/profile-manual/profile-manual.xml
+++ b/documentation/profile-manual/profile-manual.xml
@@ -1,6 +1,7 @@
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
 [<!ENTITY % poky SYSTEM "../poky.ent"> %poky; ] >
+<!--SPDX-License-Identifier: CC-BY-2.0-UK-->
 
 <book id='profile-manual' lang='en'
       xmlns:xi="http://www.w3.org/2003/XInclude"