diff --git a/components/appendix-distill.js b/components/appendix-distill.js
index d0931f2..2032e8d 100644
--- a/components/appendix-distill.js
+++ b/components/appendix-distill.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 export default function(dom, data) {
   let el = dom.querySelector('dt-appendix > div');
   if (el) {
diff --git a/components/appendix.js b/components/appendix.js
index 8f4a631..5fe16fd 100644
--- a/components/appendix.js
+++ b/components/appendix.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 const templateHTML = `
 <style>
   dt-appendix {
diff --git a/components/banner.js b/components/banner.js
index 914fb3e..56ad86e 100644
--- a/components/banner.js
+++ b/components/banner.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 const html = `
 <style>
   dt-banner {
diff --git a/components/bibliography.js b/components/bibliography.js
index ff95010..2111529 100644
--- a/components/bibliography.js
+++ b/components/bibliography.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import bibtexParse from "bibtex-parse-js";
 
 export default function(dom, data) {
diff --git a/components/byline.js b/components/byline.js
index 424620c..58e711c 100644
--- a/components/byline.js
+++ b/components/byline.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import mustache from "mustache";
 
 const html = `
diff --git a/components/citation.js b/components/citation.js
index 8be8efc..6050fde 100644
--- a/components/citation.js
+++ b/components/citation.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 export default function(dom, data) {
   let css = `
     dt-cite {
diff --git a/components/code.js b/components/code.js
index fbe3296..2b8f376 100644
--- a/components/code.js
+++ b/components/code.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import Prism from "prismjs";
 import "prismjs/components/prism-python";
 import "prismjs/components/prism-clike";
diff --git a/components/data.js b/components/data.js
index 6000ddf..a97055c 100644
--- a/components/data.js
+++ b/components/data.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import {timeFormat} from "d3-time-format";
 
 export default function(dom, data) {
diff --git a/components/dt-math.js b/components/dt-math.js
index cea42fc..bfc77b6 100644
--- a/components/dt-math.js
+++ b/components/dt-math.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import katex from "katex";
 
 const html = `
diff --git a/components/footer.js b/components/footer.js
index 20c34ee..83e7b05 100644
--- a/components/footer.js
+++ b/components/footer.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import logo from "./distill-logo.svg";
 
 let html = `
diff --git a/components/footnote.js b/components/footnote.js
index adbe8ac..dfa677d 100644
--- a/components/footnote.js
+++ b/components/footnote.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 export default function(dom, data) {
 
   var appendFootnoteHoverDiv = (function() {
diff --git a/components/front-matter.js b/components/front-matter.js
index cd1386c..9a46feb 100644
--- a/components/front-matter.js
+++ b/components/front-matter.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import ymlParse from "js-yaml";
 
 export default function(dom, data) {
diff --git a/components/generate-crossref.js b/components/generate-crossref.js
index a35badf..21ba2fb 100644
--- a/components/generate-crossref.js
+++ b/components/generate-crossref.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 //import xml from "xml";
 
 export default function(data) {
diff --git a/components/header.js b/components/header.js
index 5c3b3c0..b101a9d 100644
--- a/components/header.js
+++ b/components/header.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import logo from "./distill-logo.svg";
 
 const html = `
diff --git a/components/hover-box-include.js b/components/hover-box-include.js
index f6ca9cd..3fbbe5a 100644
--- a/components/hover-box-include.js
+++ b/components/hover-box-include.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import code from './hover-box.txt';
 
 export default function(dom) {
diff --git a/components/html.js b/components/html.js
index 9e891bd..f70920b 100644
--- a/components/html.js
+++ b/components/html.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 export default function(dom) {
   if (!dom.querySelector("html").getAttribute("lang")) {
     dom.querySelector("html").setAttribute("lang", "en")
diff --git a/components/include.js b/components/include.js
index a1e7a05..8e9f518 100644
--- a/components/include.js
+++ b/components/include.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import fetch from "fetch";
 let fetchUrl = fetch.fetchUrl
 
diff --git a/components/layout.js b/components/layout.js
index e69de29..07ad860 100644
--- a/components/layout.js
+++ b/components/layout.js
@@ -0,0 +1,14 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
diff --git a/components/markdown.js b/components/markdown.js
index fe71a28..f7ba725 100644
--- a/components/markdown.js
+++ b/components/markdown.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import marked from 'marked';
 
 marked.setOptions({
diff --git a/components/meta.js b/components/meta.js
index 5552761..ab50b4f 100644
--- a/components/meta.js
+++ b/components/meta.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import favicon from './distill-favicon.base64';
 import escape from 'escape-html';
 
diff --git a/components/styles.js b/components/styles.js
index bbd079e..ad89362 100644
--- a/components/styles.js
+++ b/components/styles.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import base from './styles-base.css';
 import layout from './styles-layout.css';
 import article from './styles-article.css';
diff --git a/components/typeset.js b/components/typeset.js
index 03fbc85..289e9fa 100644
--- a/components/typeset.js
+++ b/components/typeset.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 export default function(dom, data) {
 
   var textNodes = dom.createTreeWalker(
diff --git a/dist/template.js b/dist/template.js
index d96887e..73aa4fb 100644
--- a/dist/template.js
+++ b/dist/template.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 (function (global, factory) {
 	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
 	typeof define === 'function' && define.amd ? define(['exports'], factory) :
diff --git a/index.js b/index.js
index 3a167cb..23bc751 100644
--- a/index.js
+++ b/index.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import html from "./components/html";
 import styles from "./components/styles";
 import frontMatter from "./components/front-matter";
diff --git a/rollup.config.js b/rollup.config.js
index ac0a55e..5318241 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 import buble from 'rollup-plugin-buble';
 import resolve from 'rollup-plugin-node-resolve';
 import commonjs from 'rollup-plugin-commonjs';
diff --git a/test/test.js b/test/test.js
index af66dbc..91bea7a 100644
--- a/test/test.js
+++ b/test/test.js
@@ -1,3 +1,17 @@
+// Copyright 2018 The Distill Template Authors
+//
+// 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.
+
 // Test format: https://mochajs.org/#bdd
 // Assertion format: http://chaijs.com/api/bdd/