1 files changed, 11 insertions, 0 deletions
diff --git a/src/pnm.c b/src/pnm.c
index 222e2ee..15843a9 100644
--- a/src/pnm.c
+++ b/src/pnm.c
@@ -1,3 +1,14 @@
+/* 
+ *
+ * Copyright 2008 Johannes Hofmann <Johannes.Hofmann@gmx.de>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ */
+
+/* This code is based on Fl_PNM_Image.cxx from fltk (http://www.fltk.org)
+ */
+
 #include <string.h>
 
 #include "pnm.h"