diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index f686bc5..619e62d 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -1,4 +1,19 @@
 <?xml version="1.0" encoding="utf-8"?>
+<!--
+ * Copyright (C) 2013 Miguel Angel Astor Romero
+ *
+ * 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.
+-->
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="ve.ucv.ciens.ccg.nxtar"
     android:versionCode="1"
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
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+
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+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
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+      To apply the Apache License to your work, attach the following
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+
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+   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.
diff --git a/res/layout/main.xml b/res/layout/main.xml
index 5c4fde2..3f00d6a 100644
--- a/res/layout/main.xml
+++ b/res/layout/main.xml
@@ -1,7 +1,22 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="fill_parent"
-    android:layout_height="fill_parent"
-    android:orientation="vertical" >
-
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ * Copyright (C) 2013 Miguel Angel Astor Romero
+ *
+ * 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.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:orientation="vertical" >
+
 </LinearLayout>
\ No newline at end of file
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 92e5024..3766e58 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1,4 +1,19 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="app_name">NxtAR</string>
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ * Copyright (C) 2013 Miguel Angel Astor Romero
+ *
+ * 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.
+-->
+<resources>
+    <string name="app_name">NxtAR</string>
 </resources>
\ No newline at end of file
diff --git a/src/ve/ucv/ciens/ccg/nxtar/MainActivity.java b/src/ve/ucv/ciens/ccg/nxtar/MainActivity.java
index 2c6a6d1..bf00df6 100644
--- a/src/ve/ucv/ciens/ccg/nxtar/MainActivity.java
+++ b/src/ve/ucv/ciens/ccg/nxtar/MainActivity.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright (C) 2013 Miguel Angel Astor Romero
+ *
+ * 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 ve.ucv.ciens.ccg.nxtar;
 
 import ve.ucv.ciens.ccg.nxtar.interfaces.MulticastEnabler;