diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e9a0b2b0..117897ea 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
 name: CI
 on: [push, pull_request]
 permissions:
@@ -257,3 +260,6 @@ jobs:
       uses: github/codeql-action/upload-sarif@v4
       with:
         sarif_file: sarif-results/cpp.sarif
+  copyright:
+    name: Check copyright headers
+    uses: open-eid/.github/.github/workflows/copyright.yml@b2d87c7447ebcc01beb54c84f3978a81c1d64877 # master
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e11858a3..956ab399 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
 cmake_minimum_required(VERSION 3.21)
 
 if(POLICY CMP0167)
diff --git a/build.ps1 b/build.ps1
index 73b66117..daf7a97a 100644
--- a/build.ps1
+++ b/build.ps1
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
 #powershell -ExecutionPolicy ByPass -File build.ps1
 param(
   [string]$libcdoc = $PSScriptRoot,
diff --git a/cdoc/CDoc.cpp b/cdoc/CDoc.cpp
index 2fac95f4..e0ec30b1 100644
--- a/cdoc/CDoc.cpp
+++ b/cdoc/CDoc.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "CDoc1Writer.h"
 #include "CDoc1Reader.h"
diff --git a/cdoc/CDoc.h b/cdoc/CDoc.h
index 234127e7..54d7de5c 100644
--- a/cdoc/CDoc.h
+++ b/cdoc/CDoc.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __CDOC_H__
 #define __CDOC_H__
diff --git a/cdoc/CDoc1Reader.cpp b/cdoc/CDoc1Reader.cpp
index cb724f0d..c49f7172 100644
--- a/cdoc/CDoc1Reader.cpp
+++ b/cdoc/CDoc1Reader.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "CDoc1Reader.h"
 
diff --git a/cdoc/CDoc1Reader.h b/cdoc/CDoc1Reader.h
index adfd4630..0e498f1d 100644
--- a/cdoc/CDoc1Reader.h
+++ b/cdoc/CDoc1Reader.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/CDoc1Writer.cpp b/cdoc/CDoc1Writer.cpp
index 5c0ef66c..8f57da40 100644
--- a/cdoc/CDoc1Writer.cpp
+++ b/cdoc/CDoc1Writer.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "CDoc1Writer.h"
 
diff --git a/cdoc/CDoc1Writer.h b/cdoc/CDoc1Writer.h
index e5cf62c3..f63cb86f 100644
--- a/cdoc/CDoc1Writer.h
+++ b/cdoc/CDoc1Writer.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/CDoc2.h b/cdoc/CDoc2.h
index 2a687e0e..794dbb70 100644
--- a/cdoc/CDoc2.h
+++ b/cdoc/CDoc2.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __CDOC2_H__
 #define __CDOC2_H__
diff --git a/cdoc/CDoc2Reader.cpp b/cdoc/CDoc2Reader.cpp
index caf6a75b..a07ce34c 100644
--- a/cdoc/CDoc2Reader.cpp
+++ b/cdoc/CDoc2Reader.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "CDoc2Reader.h"
 
diff --git a/cdoc/CDoc2Reader.h b/cdoc/CDoc2Reader.h
index 03ea3a92..d92fc95e 100644
--- a/cdoc/CDoc2Reader.h
+++ b/cdoc/CDoc2Reader.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __CDOC2_READER_H__
 #define __CDOC2_READER_H__
diff --git a/cdoc/CDoc2Writer.cpp b/cdoc/CDoc2Writer.cpp
index 5247d05e..76985062 100644
--- a/cdoc/CDoc2Writer.cpp
+++ b/cdoc/CDoc2Writer.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "CDoc2Writer.h"
 
diff --git a/cdoc/CDoc2Writer.h b/cdoc/CDoc2Writer.h
index aa3eaa5b..9765022a 100644
--- a/cdoc/CDoc2Writer.h
+++ b/cdoc/CDoc2Writer.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/CDocCipher.cpp b/cdoc/CDocCipher.cpp
index b98b938e..bc057704 100644
--- a/cdoc/CDocCipher.cpp
+++ b/cdoc/CDocCipher.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "CDocCipher.h"
 #include "CDocReader.h"
diff --git a/cdoc/CDocCipher.h b/cdoc/CDocCipher.h
index 1cb49457..734f3611 100644
--- a/cdoc/CDocCipher.h
+++ b/cdoc/CDocCipher.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef CDOCCIPHER_H
 #define CDOCCIPHER_H
diff --git a/cdoc/CDocException.java b/cdoc/CDocException.java
index 19613b07..1fc7cfff 100644
--- a/cdoc/CDocException.java
+++ b/cdoc/CDocException.java
@@ -1,21 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 package ee.ria.cdoc;
 
diff --git a/cdoc/CDocReader.h b/cdoc/CDocReader.h
index 1aa578a2..4cff9102 100644
--- a/cdoc/CDocReader.h
+++ b/cdoc/CDocReader.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __CDOCREADER_H__
 #define __CDOCREADER_H__
diff --git a/cdoc/CDocWriter.h b/cdoc/CDocWriter.h
index 2622b537..f7785a31 100644
--- a/cdoc/CDocWriter.h
+++ b/cdoc/CDocWriter.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __CDOCWRITER_H__
 #define __CDOCWRITER_H__
diff --git a/cdoc/CMakeLists.txt b/cdoc/CMakeLists.txt
index 44c87a68..d609ac03 100644
--- a/cdoc/CMakeLists.txt
+++ b/cdoc/CMakeLists.txt
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
 set(SCHEMAS
     schema/recipients.fbs
     schema/header.fbs
diff --git a/cdoc/Certificate.cpp b/cdoc/Certificate.cpp
index 1c047a41..906c8c82 100644
--- a/cdoc/Certificate.cpp
+++ b/cdoc/Certificate.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include <openssl/x509v3.h>
 
diff --git a/cdoc/Certificate.h b/cdoc/Certificate.h
index 47cc7b3d..951c77e4 100644
--- a/cdoc/Certificate.h
+++ b/cdoc/Certificate.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef SSLCERTIFICATE_H
 #define SSLCERTIFICATE_H
diff --git a/cdoc/Configuration.cpp b/cdoc/Configuration.cpp
index 256172a8..2c66f0d8 100644
--- a/cdoc/Configuration.cpp
+++ b/cdoc/Configuration.cpp
@@ -1,22 +1,7 @@
-#define __CONFIGURATION_CPP__
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+#define __CONFIGURATION_CPP__
 
 #include "Configuration.h"
 
diff --git a/cdoc/Configuration.h b/cdoc/Configuration.h
index 4ca72e60..d1fd6095 100644
--- a/cdoc/Configuration.h
+++ b/cdoc/Configuration.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __CONFIGURATION_H__
 #define __CONFIGURATION_H__
diff --git a/cdoc/Crypto.cpp b/cdoc/Crypto.cpp
index bcf6314e..dbddbffb 100644
--- a/cdoc/Crypto.cpp
+++ b/cdoc/Crypto.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "CDoc.h"
 #include "Crypto.h"
diff --git a/cdoc/Crypto.h b/cdoc/Crypto.h
index 58a7e346..d0da17f0 100644
--- a/cdoc/Crypto.h
+++ b/cdoc/Crypto.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/CryptoBackend.cpp b/cdoc/CryptoBackend.cpp
index 17694cfe..dc50527e 100644
--- a/cdoc/CryptoBackend.cpp
+++ b/cdoc/CryptoBackend.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "Crypto.h"
 #include "CryptoBackend.h"
diff --git a/cdoc/CryptoBackend.h b/cdoc/CryptoBackend.h
index d3ce3c62..8fa63eca 100644
--- a/cdoc/CryptoBackend.h
+++ b/cdoc/CryptoBackend.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __CRYPTOBACKEND_H__
 #define __CRYPTOBACKEND_H__
diff --git a/cdoc/DDocReader.cpp b/cdoc/DDocReader.cpp
index 643c3cfc..ebc96537 100644
--- a/cdoc/DDocReader.cpp
+++ b/cdoc/DDocReader.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "DDocReader.h"
 #include "CDoc.h"
diff --git a/cdoc/DDocReader.h b/cdoc/DDocReader.h
index 8be469c7..21ed75e0 100644
--- a/cdoc/DDocReader.h
+++ b/cdoc/DDocReader.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/DDocWriter.cpp b/cdoc/DDocWriter.cpp
index 2133e8e4..86064d3c 100644
--- a/cdoc/DDocWriter.cpp
+++ b/cdoc/DDocWriter.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "DDocWriter.h"
 
diff --git a/cdoc/DDocWriter.h b/cdoc/DDocWriter.h
index 9bfa48cb..1aaef7a9 100644
--- a/cdoc/DDocWriter.h
+++ b/cdoc/DDocWriter.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/Exports.h b/cdoc/Exports.h
index 8185ad8a..d0619fa0 100644
--- a/cdoc/Exports.h
+++ b/cdoc/Exports.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __EXPORTS_H__
 #define __EXPORTS_H__
diff --git a/cdoc/IStreamSource.java b/cdoc/IStreamSource.java
index 7d2f7be5..8a152a2c 100644
--- a/cdoc/IStreamSource.java
+++ b/cdoc/IStreamSource.java
@@ -1,21 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 package ee.ria.cdoc;
 
diff --git a/cdoc/Io.cpp b/cdoc/Io.cpp
index 5106212c..60033afa 100644
--- a/cdoc/Io.cpp
+++ b/cdoc/Io.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "Io.h"
 
diff --git a/cdoc/Io.h b/cdoc/Io.h
index 5bc5eecf..04f1a441 100644
--- a/cdoc/Io.h
+++ b/cdoc/Io.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __IO_H__
 #define __IO_H__
diff --git a/cdoc/KeyShares.cpp b/cdoc/KeyShares.cpp
index 23789012..33fa00bc 100644
--- a/cdoc/KeyShares.cpp
+++ b/cdoc/KeyShares.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #define __KEYSHARES_CPP__
 
diff --git a/cdoc/KeyShares.h b/cdoc/KeyShares.h
index 219fc0a3..535b8a2c 100644
--- a/cdoc/KeyShares.h
+++ b/cdoc/KeyShares.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __KEYSHARES_H__
 #define __KEYSHARES_H__
diff --git a/cdoc/Lock.cpp b/cdoc/Lock.cpp
index 983e7c3c..7721a25e 100644
--- a/cdoc/Lock.cpp
+++ b/cdoc/Lock.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "Lock.h"
 
diff --git a/cdoc/Lock.h b/cdoc/Lock.h
index e9adf3c0..e655e4f4 100644
--- a/cdoc/Lock.h
+++ b/cdoc/Lock.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __LOCK_H__
 #define __LOCK_H__
diff --git a/cdoc/Logger.h b/cdoc/Logger.h
index a3d27234..1dce10c3 100644
--- a/cdoc/Logger.h
+++ b/cdoc/Logger.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/NetworkBackend.cpp b/cdoc/NetworkBackend.cpp
index 27ccbb7c..f2d3144e 100644
--- a/cdoc/NetworkBackend.cpp
+++ b/cdoc/NetworkBackend.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "NetworkBackend.h"
 
diff --git a/cdoc/NetworkBackend.h b/cdoc/NetworkBackend.h
index 8a3b8621..51bb4c04 100644
--- a/cdoc/NetworkBackend.h
+++ b/cdoc/NetworkBackend.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __NETWORKBACKEND_H__
 #define __NETWORKBACKEND_H__
diff --git a/cdoc/PKCS11Backend.cpp b/cdoc/PKCS11Backend.cpp
index 7a2bf1c7..649fafe0 100644
--- a/cdoc/PKCS11Backend.cpp
+++ b/cdoc/PKCS11Backend.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "PKCS11Backend.h"
 #include "Certificate.h"
diff --git a/cdoc/PKCS11Backend.h b/cdoc/PKCS11Backend.h
index 4df96df6..93c9f0cf 100644
--- a/cdoc/PKCS11Backend.h
+++ b/cdoc/PKCS11Backend.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __PKCS11_BACKEND_H__
 #define __PKCS11_BACKEND_H__
diff --git a/cdoc/RcptInfo.h b/cdoc/RcptInfo.h
index 9b6582a7..16959f66 100644
--- a/cdoc/RcptInfo.h
+++ b/cdoc/RcptInfo.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef RCPTINFO_H
 #define RCPTINFO_H
diff --git a/cdoc/Recipient.cpp b/cdoc/Recipient.cpp
index 89e4f4c1..753a201c 100644
--- a/cdoc/Recipient.cpp
+++ b/cdoc/Recipient.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "Recipient.h"
 
diff --git a/cdoc/Recipient.h b/cdoc/Recipient.h
index 2ac443b1..52673ff3 100644
--- a/cdoc/Recipient.h
+++ b/cdoc/Recipient.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __RECIPIENT_H__
 #define __RECIPIENT_H__
diff --git a/cdoc/Tar.cpp b/cdoc/Tar.cpp
index 383f49e8..8c4d3891 100644
--- a/cdoc/Tar.cpp
+++ b/cdoc/Tar.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "Tar.h"
 #include "Utils.h"
diff --git a/cdoc/Tar.h b/cdoc/Tar.h
index 696d4b02..31a3fff4 100644
--- a/cdoc/Tar.h
+++ b/cdoc/Tar.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef TAR_H
 #define TAR_H
diff --git a/cdoc/ToolConf.h b/cdoc/ToolConf.h
index 73212acf..5221bd2a 100644
--- a/cdoc/ToolConf.h
+++ b/cdoc/ToolConf.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef TOOLCONF_H
 #define TOOLCONF_H
diff --git a/cdoc/Utils.cpp b/cdoc/Utils.cpp
index 9495e2d0..f050f0de 100644
--- a/cdoc/Utils.cpp
+++ b/cdoc/Utils.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "Utils.h"
 
diff --git a/cdoc/Utils.h b/cdoc/Utils.h
index d2e9d570..f239a88d 100644
--- a/cdoc/Utils.h
+++ b/cdoc/Utils.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __LIBCDOC_UTILS_H__
 #define __LIBCDOC_UTILS_H__
diff --git a/cdoc/WinBackend.cpp b/cdoc/WinBackend.cpp
index 5aa62c42..5352149b 100644
--- a/cdoc/WinBackend.cpp
+++ b/cdoc/WinBackend.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "WinBackend.h"
 
diff --git a/cdoc/WinBackend.h b/cdoc/WinBackend.h
index 5cd5851c..48528c5a 100644
--- a/cdoc/WinBackend.h
+++ b/cdoc/WinBackend.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __LIBCDOC_WINBACKEND_H__
 #define __LIBCDOC_WINBACKEND_H__
diff --git a/cdoc/Wrapper.h b/cdoc/Wrapper.h
index 47e42ea1..f266c1bc 100644
--- a/cdoc/Wrapper.h
+++ b/cdoc/Wrapper.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __WRAPPER_H__
 #define __WRAPPER_H__
diff --git a/cdoc/XmlReader.cpp b/cdoc/XmlReader.cpp
index 1fc8a382..26c987e4 100644
--- a/cdoc/XmlReader.cpp
+++ b/cdoc/XmlReader.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "XmlReader.h"
 
diff --git a/cdoc/XmlReader.h b/cdoc/XmlReader.h
index cccbe488..d2f81247 100644
--- a/cdoc/XmlReader.h
+++ b/cdoc/XmlReader.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/XmlWriter.cpp b/cdoc/XmlWriter.cpp
index 7010559a..5113b6d6 100644
--- a/cdoc/XmlWriter.cpp
+++ b/cdoc/XmlWriter.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include "XmlWriter.h"
 
diff --git a/cdoc/XmlWriter.h b/cdoc/XmlWriter.h
index 4f148f09..ea08334f 100644
--- a/cdoc/XmlWriter.h
+++ b/cdoc/XmlWriter.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/ZStream.h b/cdoc/ZStream.h
index eecfc5b5..998cb88a 100644
--- a/cdoc/ZStream.h
+++ b/cdoc/ZStream.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #ifndef __ZSTREAM_H__
 #define __ZSTREAM_H__
diff --git a/cdoc/cdoc-tool.cpp b/cdoc/cdoc-tool.cpp
index 3e655b74..cbe96064 100644
--- a/cdoc/cdoc-tool.cpp
+++ b/cdoc/cdoc-tool.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #include <iostream>
 #ifndef _WIN32
diff --git a/cdoc/cdoc-tool.manifest b/cdoc/cdoc-tool.manifest
index b51f3e73..de93bda4 100644
--- a/cdoc/cdoc-tool.manifest
+++ b/cdoc/cdoc-tool.manifest
@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<!-- SPDX-FileCopyrightText: Estonian Information System Authority -->
+<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
   <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
     <security>
diff --git a/cdoc/json/LICENSE.MIT b/cdoc/json/LICENSE.MIT
new file mode 100644
index 00000000..7d583cec
--- /dev/null
+++ b/cdoc/json/LICENSE.MIT
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Dominik Thalhammer
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/cdoc/json/base.h b/cdoc/json/base.h
index 3682abac..2da7d91d 100644
--- a/cdoc/json/base.h
+++ b/cdoc/json/base.h
@@ -1,3 +1,9 @@
+// SPDX-FileCopyrightText: 2018 Dominik Thalhammer
+// SPDX-License-Identifier: MIT
+//
+// Vendored from https://github.com/Thalhammer/jwt-cpp
+// Full licence text: LICENSE.MIT in this directory
+
 #ifndef JWT_CPP_BASE_H
 #define JWT_CPP_BASE_H
 
diff --git a/cdoc/json/defaults.h b/cdoc/json/defaults.h
index eae9789a..6b0e826c 100644
--- a/cdoc/json/defaults.h
+++ b/cdoc/json/defaults.h
@@ -1,3 +1,9 @@
+// SPDX-FileCopyrightText: 2018 Dominik Thalhammer
+// SPDX-License-Identifier: MIT
+//
+// Vendored from https://github.com/Thalhammer/jwt-cpp
+// Full licence text: LICENSE.MIT in this directory
+
 #ifndef JWT_CPP_KAZUHO_PICOJSON_DEFAULTS_H
 #define JWT_CPP_KAZUHO_PICOJSON_DEFAULTS_H
 
diff --git a/cdoc/json/jwt.h b/cdoc/json/jwt.h
index b96f5ca9..66132cdd 100644
--- a/cdoc/json/jwt.h
+++ b/cdoc/json/jwt.h
@@ -1,3 +1,9 @@
+// SPDX-FileCopyrightText: 2018 Dominik Thalhammer
+// SPDX-License-Identifier: MIT
+//
+// Vendored from https://github.com/Thalhammer/jwt-cpp
+// Full licence text: LICENSE.MIT in this directory
+
 #ifndef JWT_CPP_JWT_H
 #define JWT_CPP_JWT_H
 
diff --git a/cdoc/json/traits.h b/cdoc/json/traits.h
index a03c2c9a..23eafd10 100644
--- a/cdoc/json/traits.h
+++ b/cdoc/json/traits.h
@@ -1,3 +1,9 @@
+// SPDX-FileCopyrightText: 2018 Dominik Thalhammer
+// SPDX-License-Identifier: MIT
+//
+// Vendored from https://github.com/Thalhammer/jwt-cpp
+// Full licence text: LICENSE.MIT in this directory
+
 #ifndef JWT_CPP_PICOJSON_TRAITS_H
 #define JWT_CPP_PICOJSON_TRAITS_H
 
diff --git a/cdoc/libcdoc.rc b/cdoc/libcdoc.rc
index 8170929d..029fd048 100644
--- a/cdoc/libcdoc.rc
+++ b/cdoc/libcdoc.rc
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
 #include <winver.h>
 
 VS_VERSION_INFO VERSIONINFO
diff --git a/cdoc/utils/ct.h b/cdoc/utils/ct.h
index 375a9721..7c1a6e6f 100644
--- a/cdoc/utils/ct.h
+++ b/cdoc/utils/ct.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/cdoc/utils/memory.h b/cdoc/utils/memory.h
index c441a5a2..c51b8e10 100644
--- a/cdoc/utils/memory.h
+++ b/cdoc/utils/memory.h
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #pragma once
 
diff --git a/debian/copyright b/debian/copyright
index 1fa1be1f..a12bd7ca 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -3,8 +3,52 @@ Upstream-Contact: info@ria.ee
 Source: https://github.com/open-eid/libcdoc
 
 Files: *
-Copyright: 2024-2025 Estonian Information System's Authority
-License: LGPL-2.1
+Copyright: Estonian Information System Authority
+License: LGPL-2.1+
+
+Files: cdoc/fmt/*
+Copyright: 2012-present Victor Zverovich
+Comment: Vendored from https://github.com/fmtlib/fmt
+License: Expat-with-fmt-exception
+
+Files: cdoc/httplib.h
+Copyright: 2024 Yuji Hirose
+Comment: Vendored from https://github.com/yhirose/cpp-httplib
+License: Expat
+
+Files: cdoc/json/*
+Copyright: 2018 Dominik Thalhammer
+Comment: Vendored from https://github.com/Thalhammer/jwt-cpp
+License: Expat
+
+Files: cdoc/json/picojson/*
+Copyright: 2009-2010 Cybozu Labs, Inc.
+           2011-2014 Kazuho Oku
+Comment: Vendored via jwt-cpp from https://github.com/kazuho/picojson
+License: BSD-2-clause
+
+Files: cdoc/pkcs11.h
+Copyright: 2006, 2007 g10 Code GmbH
+           2006 Andreas Jellinghaus
+Comment: From the Scute project, http://www.scute.org/
+License: all-permissive
+
+Files: cdoc/schema/*.fbs
+Copyright: 2023 Open Electronic Identity
+Comment: CDoc2 container FlatBuffers schemas.
+License: Expat
+
+Files: std_string_view.i
+Copyright: SWIG contributors
+License: SWIG-library
+
+Files: examples/java/gradlew
+       examples/java/gradlew.bat
+       examples/java/gradle/wrapper/gradle-wrapper.jar
+Copyright: 2015-2021 the original authors
+License: Apache-2.0
+
+License: LGPL-2.1+
  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
@@ -18,3 +62,105 @@ License: LGPL-2.1
  You should have received a copy of the GNU Lesser General Public
  License with your system, in /usr/share/common-licenses/LGPL-2.1
  If not, see <http://www.gnu.org/licenses/>.
+
+License: Apache-2.0
+ 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
+ .
+     https://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.
+ .
+ On Debian systems the full text of the Apache License version 2.0 can be
+ found in /usr/share/common-licenses/Apache-2.0
+
+License: SWIG-library
+ You may copy, modify, distribute, and make derivative works based on
+ this software, in source code or object code form, without
+ restriction. If you distribute the software to others, you may do
+ so according to the terms of your choice. This software is offered as
+ is, without warranty of any kind.
+
+License: Expat
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+ .
+ The above copyright notice and this permission notice shall be included in all
+ copies or substantial portions of the Software.
+ .
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ SOFTWARE.
+
+License: Expat-with-fmt-exception
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+ .
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+ .
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ .
+ --- Optional exception to the license ---
+ .
+ As an exception, if, as a result of your compiling your source code, portions
+ of this Software are embedded into a machine-executable object form of such
+ source code, you may redistribute such embedded portions in such object form
+ without including the above copyright and permission notices.
+
+License: BSD-2-clause
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ .
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ .
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ .
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+License: all-permissive
+ This file is free software; as a special exception the author gives
+ unlimited permission to copy and/or distribute it, with or without
+ modifications, as long as this notice is preserved.
+ .
+ This file is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY, to the extent permitted by law; without even
+ the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ PURPOSE.
diff --git a/debian/rules b/debian/rules
index 681ccd79..94c30134 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,4 +1,7 @@
 #!/usr/bin/make -f
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
 DEB_MAKE_CHECK_TARGET = test
 
 %:
diff --git a/examples/java/build.gradle b/examples/java/build.gradle
index 4acef996..e1227795 100755
--- a/examples/java/build.gradle
+++ b/examples/java/build.gradle
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
 plugins {
     id 'java'
 }
diff --git a/examples/java/settings.gradle b/examples/java/settings.gradle
index 676612ba..72d4df2f 100644
--- a/examples/java/settings.gradle
+++ b/examples/java/settings.gradle
@@ -1 +1,4 @@
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
 rootProject.name = "cdoc"
diff --git a/examples/java/src/main/java/ee/ria/cdoc/CDocTool.java b/examples/java/src/main/java/ee/ria/cdoc/CDocTool.java
index 2b0cf6be..b014ad50 100644
--- a/examples/java/src/main/java/ee/ria/cdoc/CDocTool.java
+++ b/examples/java/src/main/java/ee/ria/cdoc/CDocTool.java
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
 package ee.ria.cdoc;
 
 import java.io.File;
diff --git a/libcdoc.i b/libcdoc.i
index 6bc01d3f..ae59d7de 100644
--- a/libcdoc.i
+++ b/libcdoc.i
@@ -1,21 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 %module(directors="1") CDoc
 
diff --git a/std_string_view.i b/std_string_view.i
index 51076bda..deb1427b 100644
--- a/std_string_view.i
+++ b/std_string_view.i
@@ -1,3 +1,16 @@
+/* SPDX-FileCopyrightText: SWIG contributors
+ * SPDX-License-Identifier: LicenseRef-SWIG-Library
+ *
+ * Adapted from the SWIG library file Lib/java/std_string.i. The SWIG library,
+ * under the Lib and Examples top level directories, is distributed under the
+ * following terms:
+ *
+ *   You may copy, modify, distribute, and make derivative works based on
+ *   this software, in source code or object code form, without
+ *   restriction. If you distribute the software to others, you may do
+ *   so according to the terms of your choice. This software is offered as
+ *   is, without warranty of any kind.
+ */
 /* -----------------------------------------------------------------------------
  * std_string_view.i
  *
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 56b1ae3e..08e3242e 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -1,3 +1,6 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
 add_executable(unittests
     libcdoc_boost.cpp
     ../cdoc/Crypto.cpp
diff --git a/test/libcdoc_boost.cpp b/test/libcdoc_boost.cpp
index 544c00b9..44f52a74 100644
--- a/test/libcdoc_boost.cpp
+++ b/test/libcdoc_boost.cpp
@@ -1,20 +1,5 @@
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
 #define BOOST_TEST_MODULE "C++ Unit Tests for libcdoc"
 
diff --git a/test/pipe.h b/test/pipe.h
index 1a6b2b2d..c7a6acc3 100644
--- a/test/pipe.h
+++ b/test/pipe.h
@@ -1,22 +1,7 @@
-#pragma once
+// SPDX-FileCopyrightText: Estonian Information System Authority
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
-/*
- * libcdoc
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- */
+#pragma once
 
  #include <cdoc/Io.h>
 
diff --git a/vcpkg-triplets/arm-neon-android.cmake b/vcpkg-triplets/arm-neon-android.cmake
index 1754b1e9..3819b0d2 100644
--- a/vcpkg-triplets/arm-neon-android.cmake
+++ b/vcpkg-triplets/arm-neon-android.cmake
@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# Based on vcpkg's triplet of the same name (MIT), https://github.com/microsoft/vcpkg
+# Differs only in static CRT linkage and Android API level 30.
+
 set(VCPKG_TARGET_ARCHITECTURE arm)
 set(VCPKG_CRT_LINKAGE static)
 set(VCPKG_LIBRARY_LINKAGE static)
diff --git a/vcpkg-triplets/arm64-android.cmake b/vcpkg-triplets/arm64-android.cmake
index 77cced4c..0f19e972 100644
--- a/vcpkg-triplets/arm64-android.cmake
+++ b/vcpkg-triplets/arm64-android.cmake
@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# Based on vcpkg's triplet of the same name (MIT), https://github.com/microsoft/vcpkg
+# Differs only in static CRT linkage and Android API level 30.
+
 set(VCPKG_TARGET_ARCHITECTURE arm64)
 set(VCPKG_CRT_LINKAGE static)
 set(VCPKG_LIBRARY_LINKAGE static)
diff --git a/vcpkg-triplets/arm64-x64-osx.cmake b/vcpkg-triplets/arm64-x64-osx.cmake
index 2fe10148..7aba1a26 100644
--- a/vcpkg-triplets/arm64-x64-osx.cmake
+++ b/vcpkg-triplets/arm64-x64-osx.cmake
@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# Based on vcpkg's arm64-osx triplet (MIT), https://github.com/microsoft/vcpkg
+# Extended to a universal binary with a 14.0 deployment target.
+
 set(VCPKG_TARGET_ARCHITECTURE arm64 x86_64)
 set(VCPKG_CRT_LINKAGE dynamic)
 set(VCPKG_LIBRARY_LINKAGE static)
diff --git a/vcpkg-triplets/x64-android.cmake b/vcpkg-triplets/x64-android.cmake
index 6ec5579e..e2d00654 100644
--- a/vcpkg-triplets/x64-android.cmake
+++ b/vcpkg-triplets/x64-android.cmake
@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: Estonian Information System Authority
+# SPDX-License-Identifier: LGPL-2.1-or-later
+#
+# Based on vcpkg's triplet of the same name (MIT), https://github.com/microsoft/vcpkg
+# Differs only in static CRT linkage and Android API level 30.
+
 set(VCPKG_TARGET_ARCHITECTURE x64)
 set(VCPKG_CRT_LINKAGE static)
 set(VCPKG_LIBRARY_LINKAGE static)