diff --git a/app/src/main/java/com/zeapo/pwdstore/LaunchActivity.kt b/app/src/main/java/com/zeapo/pwdstore/LaunchActivity.kt
index 69366a21b..da3d582ad 100644
--- a/app/src/main/java/com/zeapo/pwdstore/LaunchActivity.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/LaunchActivity.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore
 
 import android.content.Intent
diff --git a/app/src/main/java/com/zeapo/pwdstore/PasswordEntry.kt b/app/src/main/java/com/zeapo/pwdstore/PasswordEntry.kt
index 6b751b5ce..70ffeb91f 100644
--- a/app/src/main/java/com/zeapo/pwdstore/PasswordEntry.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/PasswordEntry.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore
 
 import android.net.Uri
diff --git a/app/src/main/java/com/zeapo/pwdstore/PasswordFragment.java b/app/src/main/java/com/zeapo/pwdstore/PasswordFragment.java
index 98803f292..a52dc0d99 100644
--- a/app/src/main/java/com/zeapo/pwdstore/PasswordFragment.java
+++ b/app/src/main/java/com/zeapo/pwdstore/PasswordFragment.java
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore;
 
 import android.content.Context;
diff --git a/app/src/main/java/com/zeapo/pwdstore/PasswordGeneratorDialogFragment.java b/app/src/main/java/com/zeapo/pwdstore/PasswordGeneratorDialogFragment.java
index 2f72352b3..132e52b68 100644
--- a/app/src/main/java/com/zeapo/pwdstore/PasswordGeneratorDialogFragment.java
+++ b/app/src/main/java/com/zeapo/pwdstore/PasswordGeneratorDialogFragment.java
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore;
 
 import android.annotation.SuppressLint;
diff --git a/app/src/main/java/com/zeapo/pwdstore/PasswordStore.java b/app/src/main/java/com/zeapo/pwdstore/PasswordStore.java
index 3c0d0d6c3..51759d347 100644
--- a/app/src/main/java/com/zeapo/pwdstore/PasswordStore.java
+++ b/app/src/main/java/com/zeapo/pwdstore/PasswordStore.java
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore;
 
 import android.Manifest;
diff --git a/app/src/main/java/com/zeapo/pwdstore/SelectFolderActivity.kt b/app/src/main/java/com/zeapo/pwdstore/SelectFolderActivity.kt
index 7a55f09f7..679d37c44 100644
--- a/app/src/main/java/com/zeapo/pwdstore/SelectFolderActivity.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/SelectFolderActivity.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore
 
 import android.app.Activity
diff --git a/app/src/main/java/com/zeapo/pwdstore/SelectFolderFragment.java b/app/src/main/java/com/zeapo/pwdstore/SelectFolderFragment.java
index b31a5d6fb..25304f10e 100644
--- a/app/src/main/java/com/zeapo/pwdstore/SelectFolderFragment.java
+++ b/app/src/main/java/com/zeapo/pwdstore/SelectFolderFragment.java
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore;
 
 import android.content.Context;
diff --git a/app/src/main/java/com/zeapo/pwdstore/SshKeyGen.java b/app/src/main/java/com/zeapo/pwdstore/SshKeyGen.java
index 3055d41f4..45334746e 100644
--- a/app/src/main/java/com/zeapo/pwdstore/SshKeyGen.java
+++ b/app/src/main/java/com/zeapo/pwdstore/SshKeyGen.java
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore;
 
 import android.annotation.SuppressLint;
diff --git a/app/src/main/java/com/zeapo/pwdstore/ToCloneOrNot.kt b/app/src/main/java/com/zeapo/pwdstore/ToCloneOrNot.kt
index c84a01c00..5abc60dcc 100644
--- a/app/src/main/java/com/zeapo/pwdstore/ToCloneOrNot.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/ToCloneOrNot.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore
 
 import android.os.Bundle
diff --git a/app/src/main/java/com/zeapo/pwdstore/UserPreference.kt b/app/src/main/java/com/zeapo/pwdstore/UserPreference.kt
index c20215753..3de072984 100644
--- a/app/src/main/java/com/zeapo/pwdstore/UserPreference.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/UserPreference.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore
 
 import android.accessibilityservice.AccessibilityServiceInfo
diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillActivity.kt b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillActivity.kt
index c37e253a3..01357d714 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillActivity.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillActivity.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.autofill
 
 import android.app.PendingIntent
diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillFragment.kt b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillFragment.kt
index 55a84d196..7e9e1ea4d 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillFragment.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillFragment.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.autofill
 
 import android.annotation.SuppressLint
diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.kt b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.kt
index cb647c044..65163f8b8 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.autofill
 
 import android.content.Context
diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillRecyclerAdapter.kt b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillRecyclerAdapter.kt
index 6ebd09777..c360e778a 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillRecyclerAdapter.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillRecyclerAdapter.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.autofill
 
 import android.content.Context
diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.kt b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.kt
index 796b45181..0471e52d6 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.autofill
 
 import android.accessibilityservice.AccessibilityService
diff --git a/app/src/main/java/com/zeapo/pwdstore/crypto/PgpActivity.kt b/app/src/main/java/com/zeapo/pwdstore/crypto/PgpActivity.kt
index 523fc6a6a..ff52c2281 100644
--- a/app/src/main/java/com/zeapo/pwdstore/crypto/PgpActivity.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/crypto/PgpActivity.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.crypto
 
 import android.app.PendingIntent
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/BreakOutOfDetached.kt b/app/src/main/java/com/zeapo/pwdstore/git/BreakOutOfDetached.kt
index 8b23c38eb..084f9dbb7 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/BreakOutOfDetached.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/BreakOutOfDetached.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git
 
 import android.app.Activity
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/CloneOperation.kt b/app/src/main/java/com/zeapo/pwdstore/git/CloneOperation.kt
index 53fbf77a0..8202b6d3a 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/CloneOperation.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/CloneOperation.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git
 
 import android.app.Activity
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.kt b/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.kt
index 403a4e125..58d295694 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/GitActivity.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git
 
 import android.content.Context
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/GitAsyncTask.java b/app/src/main/java/com/zeapo/pwdstore/git/GitAsyncTask.java
index 3dd1cd94d..cb221624e 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/GitAsyncTask.java
+++ b/app/src/main/java/com/zeapo/pwdstore/git/GitAsyncTask.java
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git;
 
 import android.app.Activity;
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/GitOperation.kt b/app/src/main/java/com/zeapo/pwdstore/git/GitOperation.kt
index e155bdd35..de97a2f48 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/GitOperation.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/GitOperation.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git
 
 import android.annotation.SuppressLint
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/PullOperation.kt b/app/src/main/java/com/zeapo/pwdstore/git/PullOperation.kt
index 1ec8ec923..5e3d5a8f8 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/PullOperation.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/PullOperation.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git
 
 import android.app.Activity
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/PushOperation.kt b/app/src/main/java/com/zeapo/pwdstore/git/PushOperation.kt
index 55feadc38..da1b27a6b 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/PushOperation.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/PushOperation.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git
 
 import android.app.Activity
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/ResetToRemoteOperation.kt b/app/src/main/java/com/zeapo/pwdstore/git/ResetToRemoteOperation.kt
index b988d0af9..f8b6175d6 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/ResetToRemoteOperation.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/ResetToRemoteOperation.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git
 
 import android.app.Activity
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/SyncOperation.kt b/app/src/main/java/com/zeapo/pwdstore/git/SyncOperation.kt
index a795921db..32c0bf1ac 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/SyncOperation.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/SyncOperation.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git
 
 import android.app.Activity
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/config/GitConfigSessionFactory.kt b/app/src/main/java/com/zeapo/pwdstore/git/config/GitConfigSessionFactory.kt
index 2ac11ab41..8f52d9200 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/config/GitConfigSessionFactory.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/config/GitConfigSessionFactory.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git.config
 
 import com.jcraft.jsch.JSch
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/config/SshApiSessionFactory.java b/app/src/main/java/com/zeapo/pwdstore/git/config/SshApiSessionFactory.java
index 7b2c062fe..1f0968b15 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/config/SshApiSessionFactory.java
+++ b/app/src/main/java/com/zeapo/pwdstore/git/config/SshApiSessionFactory.java
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git.config;
 
 import android.app.Activity;
diff --git a/app/src/main/java/com/zeapo/pwdstore/git/config/SshConfigSessionFactory.kt b/app/src/main/java/com/zeapo/pwdstore/git/config/SshConfigSessionFactory.kt
index e859f6096..a8db9f988 100644
--- a/app/src/main/java/com/zeapo/pwdstore/git/config/SshConfigSessionFactory.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/git/config/SshConfigSessionFactory.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.git.config
 
 import com.jcraft.jsch.JSch
diff --git a/app/src/main/java/com/zeapo/pwdstore/pwgen/PasswordGenerator.kt b/app/src/main/java/com/zeapo/pwdstore/pwgen/PasswordGenerator.kt
index 09988ad13..034ee6c58 100644
--- a/app/src/main/java/com/zeapo/pwdstore/pwgen/PasswordGenerator.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/pwgen/PasswordGenerator.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.pwgen
 
 import android.content.Context
diff --git a/app/src/main/java/com/zeapo/pwdstore/pwgen/Phonemes.kt b/app/src/main/java/com/zeapo/pwdstore/pwgen/Phonemes.kt
index f44776815..34e501b90 100644
--- a/app/src/main/java/com/zeapo/pwdstore/pwgen/Phonemes.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/pwgen/Phonemes.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.pwgen
 
 internal object Phonemes {
diff --git a/app/src/main/java/com/zeapo/pwdstore/pwgen/RandomNumberGenerator.kt b/app/src/main/java/com/zeapo/pwdstore/pwgen/RandomNumberGenerator.kt
index e208bc758..c3b8ea020 100644
--- a/app/src/main/java/com/zeapo/pwdstore/pwgen/RandomNumberGenerator.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/pwgen/RandomNumberGenerator.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.pwgen
 
 import java.security.NoSuchAlgorithmException
diff --git a/app/src/main/java/com/zeapo/pwdstore/pwgen/RandomPasswordGenerator.kt b/app/src/main/java/com/zeapo/pwdstore/pwgen/RandomPasswordGenerator.kt
index f37267b85..ef1c3dd08 100644
--- a/app/src/main/java/com/zeapo/pwdstore/pwgen/RandomPasswordGenerator.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/pwgen/RandomPasswordGenerator.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.pwgen
 
 internal object RandomPasswordGenerator {
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/EntryRecyclerAdapter.kt b/app/src/main/java/com/zeapo/pwdstore/utils/EntryRecyclerAdapter.kt
index bf2fac94f..0f168694d 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/EntryRecyclerAdapter.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/EntryRecyclerAdapter.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils
 
 import android.annotation.SuppressLint
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/Extensions.kt b/app/src/main/java/com/zeapo/pwdstore/utils/Extensions.kt
index 7c2a28c3e..4726956e6 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/Extensions.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/Extensions.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils
 
 import android.content.Context
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/FolderRecyclerAdapter.kt b/app/src/main/java/com/zeapo/pwdstore/utils/FolderRecyclerAdapter.kt
index cab1c0529..6a464b073 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/FolderRecyclerAdapter.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/FolderRecyclerAdapter.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils
 
 import android.view.View
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/Otp.java b/app/src/main/java/com/zeapo/pwdstore/utils/Otp.java
index 1a77c380a..ce27a956a 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/Otp.java
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/Otp.java
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils;
 
 import android.util.Log;
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordItem.kt b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordItem.kt
index f16e51114..232d4fe94 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordItem.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordItem.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils
 
 import com.zeapo.pwdstore.crypto.PgpActivity
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRecyclerAdapter.kt b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRecyclerAdapter.kt
index 55ea3ddf0..f5cbfdda5 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRecyclerAdapter.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRecyclerAdapter.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils
 
 import android.view.Menu
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRepository.kt b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRepository.kt
index db37c5474..3f8fd31ba 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRepository.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRepository.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils
 
 import android.content.Context
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/auth/AuthenticationResult.kt b/app/src/main/java/com/zeapo/pwdstore/utils/auth/AuthenticationResult.kt
index d8530ba35..d780c1336 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/auth/AuthenticationResult.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/auth/AuthenticationResult.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils.auth
 
 import androidx.biometric.BiometricPrompt
diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/auth/Authenticator.kt b/app/src/main/java/com/zeapo/pwdstore/utils/auth/Authenticator.kt
index 98d787f9c..b1e799919 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/auth/Authenticator.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/auth/Authenticator.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 package com.zeapo.pwdstore.utils.auth
 
 import android.os.Handler
diff --git a/app/src/main/java/com/zeapo/pwdstore/widget/MultiselectableLinearLayout.kt b/app/src/main/java/com/zeapo/pwdstore/widget/MultiselectableLinearLayout.kt
index 22fb6f00e..77bdd167e 100644
--- a/app/src/main/java/com/zeapo/pwdstore/widget/MultiselectableLinearLayout.kt
+++ b/app/src/main/java/com/zeapo/pwdstore/widget/MultiselectableLinearLayout.kt
@@ -1,9 +1,7 @@
 /*
- * Copyright © 2017-2018 WireGuard LLC.
- * Copyright © 2018-2019 Harsh Shandilya <msfjarvis@gmail.com>. All Rights Reserved.
- * SPDX-License-Identifier: Apache-2.0
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
  */
-
 package com.zeapo.pwdstore.widget
 
 import android.content.Context
diff --git a/build.gradle.kts b/build.gradle.kts
index 28b13bd74..4df3c106f 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 import com.github.benmanes.gradle.versions.updates.DependencyUpdatesTask
 
 buildscript {
diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index 8c3ae64d3..5b66e8eca 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 plugins {
     `kotlin-dsl`
 }
diff --git a/buildSrc/src/main/kotlin/SpotlessConfiguration.kt b/buildSrc/src/main/kotlin/SpotlessConfiguration.kt
index 3c183c5ff..71cfc558a 100644
--- a/buildSrc/src/main/kotlin/SpotlessConfiguration.kt
+++ b/buildSrc/src/main/kotlin/SpotlessConfiguration.kt
@@ -1,3 +1,7 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 import com.diffplug.gradle.spotless.SpotlessExtension
 import com.diffplug.gradle.spotless.SpotlessPlugin
 import org.gradle.api.Project
@@ -17,8 +21,8 @@ fun Project.configureSpotless() {
         java {
             target("**/src/main/**/*.java")
             trimTrailingWhitespace()
-            // @Suppress("INACCESSIBLE_TYPE")
-            // licenseHeader(kotlinLicenseHeader)
+            @Suppress("INACCESSIBLE_TYPE")
+            licenseHeader(kotlinLicenseHeader)
             removeUnusedImports()
             googleJavaFormat().aosp()
             endWithNewline()
@@ -27,8 +31,8 @@ fun Project.configureSpotless() {
         kotlinGradle {
             target("*.gradle.kts", "gradle/*.gradle.kts", "buildSrc/*.gradle.kts")
             ktlint("0.31.0").userData(mapOf("indent_size" to "4", "continuation_indent_size" to "4"))
-            // @Suppress("INACCESSIBLE_TYPE")
-            // licenseHeader(kotlinLicenseHeader, "import|tasks|apply|plugins|include")
+            @Suppress("INACCESSIBLE_TYPE")
+            licenseHeader(kotlinLicenseHeader, "import|tasks|apply|plugins|include|buildscript")
             trimTrailingWhitespace()
             indentWithSpaces()
             endWithNewline()
@@ -37,8 +41,8 @@ fun Project.configureSpotless() {
         kotlin {
             target("**/src/main/**/*.kt", "buildSrc/**/*.kt")
             ktlint("0.31.0").userData(mapOf("indent_size" to "4", "continuation_indent_size" to "4"))
-            // @Suppress("INACCESSIBLE_TYPE")
-            // licenseHeader(kotlinLicenseHeader)
+            @Suppress("INACCESSIBLE_TYPE")
+            licenseHeader(kotlinLicenseHeader, "import|package|class|object|@file")
             trimTrailingWhitespace()
             indentWithSpaces()
             endWithNewline()
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 15a801b10..6be151c33 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1 +1,5 @@
+/*
+ * Copyright © 2014-2019 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-2.0
+ */
 include(":app")