diff --git a/COPYRIGHT b/COPYRIGHT
index a31d1dbcda..8790fb69dd 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -4,6 +4,11 @@ License: GPL-3
  The full text of the GPL is distributed as in
  /usr/share/common-licenses/GPL-3 on Debian systems.
 
+Files: src/calibre/ebooks/pdf/*.h,*.cpp
+License: GPL-2 or later
+ The full text of the GPL is distributed as in
+ /usr/share/common-licenses/GPL-2 on Debian systems.
+
 Files: src/calibre/ebooks/BeautifulSoup.py
 Copyright: Copyright (c) 2004-2007, Leonard Richardson
 License: BSD
diff --git a/src/calibre/ebooks/pdf/fonts.cpp b/src/calibre/ebooks/pdf/fonts.cpp
index 3cd7ef0c5b..99ab7517c1 100644
--- a/src/calibre/ebooks/pdf/fonts.cpp
+++ b/src/calibre/ebooks/pdf/fonts.cpp
@@ -1,6 +1,6 @@
 /**
  * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
- * License: GNU GPL v3
+ * License: GNU GPL v2+
  */
 
 
diff --git a/src/calibre/ebooks/pdf/fonts.h b/src/calibre/ebooks/pdf/fonts.h
index 55202c9573..1b380e1b87 100644
--- a/src/calibre/ebooks/pdf/fonts.h
+++ b/src/calibre/ebooks/pdf/fonts.h
@@ -1,6 +1,6 @@
 /**
  * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
- * License: GNU GPL v3
+ * License: GNU GPL v2+
  */
 
 
diff --git a/src/calibre/ebooks/pdf/images.cpp b/src/calibre/ebooks/pdf/images.cpp
index b3b062e1f4..4cd1ace776 100644
--- a/src/calibre/ebooks/pdf/images.cpp
+++ b/src/calibre/ebooks/pdf/images.cpp
@@ -1,3 +1,10 @@
+/**
+ * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
+ * License: GNU GPL v2+
+ */
+
+
+
 #include <stdio.h>
 #include <errno.h>
 #include <sstream>
diff --git a/src/calibre/ebooks/pdf/images.h b/src/calibre/ebooks/pdf/images.h
index 7d6f143147..1b4d9b58bf 100644
--- a/src/calibre/ebooks/pdf/images.h
+++ b/src/calibre/ebooks/pdf/images.h
@@ -1,3 +1,10 @@
+/**
+ * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
+ * License: GNU GPL v2+
+ */
+
+
+
 #pragma once
 
 #include <vector>
diff --git a/src/calibre/ebooks/pdf/links.cpp b/src/calibre/ebooks/pdf/links.cpp
index 414ff5ce24..8d28492bab 100644
--- a/src/calibre/ebooks/pdf/links.cpp
+++ b/src/calibre/ebooks/pdf/links.cpp
@@ -1,6 +1,6 @@
 /**
  * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
- * License: GNU GPL v3
+ * License: GNU GPL v2+
  */
 
 
diff --git a/src/calibre/ebooks/pdf/links.h b/src/calibre/ebooks/pdf/links.h
index a8a3127a77..c43911ddca 100644
--- a/src/calibre/ebooks/pdf/links.h
+++ b/src/calibre/ebooks/pdf/links.h
@@ -1,6 +1,6 @@
 /**
  * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
- * License: GNU GPL v3
+ * License: GNU GPL v2+
  */
 
 
diff --git a/src/calibre/ebooks/pdf/main.cpp b/src/calibre/ebooks/pdf/main.cpp
index 44257b50f5..4e6ec60388 100644
--- a/src/calibre/ebooks/pdf/main.cpp
+++ b/src/calibre/ebooks/pdf/main.cpp
@@ -1,3 +1,10 @@
+/**
+ * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
+ * License: GNU GPL v2+
+ */
+
+
+
 #ifndef PDF2XML
 #define UNICODE
 #define PY_SSIZE_T_CLEAN
diff --git a/src/calibre/ebooks/pdf/reflow.cpp b/src/calibre/ebooks/pdf/reflow.cpp
index c08d7e5507..0c569fe0d1 100644
--- a/src/calibre/ebooks/pdf/reflow.cpp
+++ b/src/calibre/ebooks/pdf/reflow.cpp
@@ -1,6 +1,6 @@
 /**
  * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
- * License: GNU GPL v3
+ * License: GNU GPL v2+
  */
 
 #include <Outline.h>
diff --git a/src/calibre/ebooks/pdf/reflow.h b/src/calibre/ebooks/pdf/reflow.h
index deb1dec326..ad4b79929d 100644
--- a/src/calibre/ebooks/pdf/reflow.h
+++ b/src/calibre/ebooks/pdf/reflow.h
@@ -1,6 +1,6 @@
 /**
  * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
- * License: GNU GPL v3
+ * License: GNU GPL v2+
  * Based on pdftohtml from the poppler project.
  */
 
diff --git a/src/calibre/ebooks/pdf/utils.h b/src/calibre/ebooks/pdf/utils.h
index 43f435b1e3..4246239ac7 100644
--- a/src/calibre/ebooks/pdf/utils.h
+++ b/src/calibre/ebooks/pdf/utils.h
@@ -1,6 +1,6 @@
 /**
  * Copyright 2009 Kovid Goyal <kovid@kovidgoyal.net>
- * License: GNU GPL v3
+ * License: GNU GPL v2+
  */