optimize.rb in hexapdf-0.9.1

- old
+ new

@@ -2,11 +2,11 @@
 #
 #--
 # This file is part of HexaPDF.
 #
 # HexaPDF - A Versatile PDF Creation and Manipulation Library For Ruby
-# Copyright (C) 2014-2018 Thomas Leitner
+# Copyright (C) 2014-2019 Thomas Leitner
 #
 # HexaPDF is free software: you can redistribute it and/or modify it
 # under the terms of the GNU Affero General Public License version 3 as
 # published by the Free Software Foundation with the addition of the
 # following permission added to Section 15 as permitted in Section 7(a):
@@ -27,9 +27,12 @@
 # under Section 5 of the GNU Affero General Public License version 3.
 #
 # In accordance with Section 7(b) of the GNU Affero General Public
 # License, a covered work must retain the producer line in every PDF that
 # is created or manipulated using HexaPDF.
+#
+# If the GNU Affero General Public License doesn't fit your need,
+# commercial licenses are available at <https://gettalong.at/hexapdf/>.
 #++
 
 require 'set'
 require 'hexapdf/serializer'
 require 'hexapdf/content/parser'