diff --git a/widgets/text/line_scanner.go b/widgets/text/line_scanner.go
index cf735f2..7557c93 100644
--- a/widgets/text/line_scanner.go
+++ b/widgets/text/line_scanner.go
@@ -1,3 +1,17 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package text
 
 // line_scanner.go contains code that finds lines within text.
diff --git a/widgets/text/line_scanner_test.go b/widgets/text/line_scanner_test.go
index fe8fbff..125ccdb 100644
--- a/widgets/text/line_scanner_test.go
+++ b/widgets/text/line_scanner_test.go
@@ -1,3 +1,17 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package text
 
 import (
diff --git a/widgets/text/options.go b/widgets/text/options.go
index 874c7e0..db0fca7 100644
--- a/widgets/text/options.go
+++ b/widgets/text/options.go
@@ -1,3 +1,17 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package text
 
 import (
diff --git a/widgets/text/write_options.go b/widgets/text/write_options.go
index 790ba2c..b8b87b8 100644
--- a/widgets/text/write_options.go
+++ b/widgets/text/write_options.go
@@ -1,3 +1,17 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package text
 
 // write_options.go contains options used when writing content to the Text widget.
diff --git a/widgets/text/write_options_test.go b/widgets/text/write_options_test.go
index 0c96bb8..f9fd2db 100644
--- a/widgets/text/write_options_test.go
+++ b/widgets/text/write_options_test.go
@@ -1,3 +1,17 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package text
 
 import (