diff --git a/autotests/samplefiles/testexternalextractor/main.py b/autotests/samplefiles/testexternalextractor/main.py
index 1602dc0..d075c96 100755
--- a/autotests/samplefiles/testexternalextractor/main.py
+++ b/autotests/samplefiles/testexternalextractor/main.py
@@ -1,23 +1,41 @@
 #!@PYTHON_EXECUTABLE@
+#
+# Copyright (C) 2016 Varun Joshi <varunj.1011@gmail.com>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) version 3, or any
+# later version accepted by the membership of KDE e.V. (or its
+# successor approved by the membership of KDE e.V.), which shall
+# act as a proxy defined in Section 6 of version 3 of the license.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public 
+# License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
 import sys
 import json
 
 extractor_data = json.loads(sys.stdin.read())
 
 def extract():
      path = extractor_data.get('path')
      mimetype = extractor_data.get('mimetype')
 
      doc = open(path)
 
      return_value = {}
      return_value['properties'] = {}
      return_value['properties']['text'] = doc.read()
      return_value['status'] = 'OK'
      return_value['error'] = ''
 
      print(json.dumps(return_value))
 
 if __name__ == "__main__":
     extract()
diff --git a/autotests/samplefiles/testexternalwriter/main.py b/autotests/samplefiles/testexternalwriter/main.py
index a44adfc..a965d9f 100755
--- a/autotests/samplefiles/testexternalwriter/main.py
+++ b/autotests/samplefiles/testexternalwriter/main.py
@@ -1,23 +1,41 @@
 #!@PYTHON_EXECUTABLE@
+#
+# Copyright (C) 2016 Varun Joshi <varunj.1011@gmail.com>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) version 3, or any
+# later version accepted by the membership of KDE e.V. (or its
+# successor approved by the membership of KDE e.V.), which shall
+# act as a proxy defined in Section 6 of version 3 of the license.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public 
+# License along with this library.  If not, see <https://www.gnu.org/licenses/>.
 
 import sys
 import json
 
 writer_data = json.loads(sys.stdin.read())
 
 def write():
      path = writer_data.get('path')
      mimetype = writer_data.get('mimetype', '')
      properties = writer_data.get('properties', '')
 
      output = open(path, 'w')
      output.write(json.dumps(properties))
 
      return_status = {}
      return_status['status'] = 'OK'
      return_status['error'] = ''
 
      print(json.dumps(return_status))
 
 if __name__ == "__main__":
     write()