diff --git a/NOTICE.md b/NOTICE.md
index 5368946..522b705 100644
--- a/NOTICE.md
+++ b/NOTICE.md
@@ -1,4 +1,4 @@
-qpdf is copyright (c) 2005-2021 Jay Berkenbilt, 2022-2025 Jay Berkenbilt and Manfred Holger
+qpdf is copyright (c) 2005-2021 Jay Berkenbilt, 2022-2026 Jay Berkenbilt and Manfred Holger
 
 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
 
diff --git a/README-maintainer.md b/README-maintainer.md
index c74360b..86043e5 100644
--- a/README-maintainer.md
+++ b/README-maintainer.md
@@ -515,7 +515,7 @@ When done, the following should happen:
   * debian package -- search for copyright.*berkenbilt in debian/copyright
   * qtest-driver, TestDriver.pm in qtest source
 
-  Copyright last updated: 2025.
+  Copyright last updated: 2026.
 
 * Take a look at "External Libraries" in TODO to see if we need to
   make any changes. There is still some automation work left to do, so
diff --git a/README.md b/README.md
index 46255d8..5c232b9 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ qpdf versions prior to version 13 were also signed using Jay Berkenbilt's GPG ke
 
 # Copyright, License
 
-qpdf is copyright (c) 2005-2021 Jay Berkenbilt, 2022-2025 Jay Berkenbilt and Manfred Holger
+qpdf is copyright (c) 2005-2021 Jay Berkenbilt, 2022-2026 Jay Berkenbilt and Manfred Holger
 
 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
diff --git a/appimage/build-appimage b/appimage/build-appimage
index dbd97de..bf602ba 100755
--- a/appimage/build-appimage
+++ b/appimage/build-appimage
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# Copyright (c) 2019-2025 Jay Berkenbilt and Kurt Pfeifle
+# Copyright (c) 2019-2026 Jay Berkenbilt and Kurt Pfeifle
 #
 # This script is used to build an 'AppImage' from GitHub sources of
 # QPDF (see https://appimage.org/). It is used in CI, but it also
diff --git a/appimage/qpdf.appdata.xml b/appimage/qpdf.appdata.xml
index a8e22d7..0418f56 100644
--- a/appimage/qpdf.appdata.xml
+++ b/appimage/qpdf.appdata.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!-- Copyright 2005-2021 Jay Berkenbilt, 2022-2025 Jay Berkenbilt and Manfred Holger -->
+<!-- Copyright 2005-2021 Jay Berkenbilt, 2022-2026 Jay Berkenbilt and Manfred Holger -->
 <component>
 	<id>org.QPDF.qpdf.desktop</id>
 	<metadata_license>MIT</metadata_license>
diff --git a/include/qpdf/Buffer.hh b/include/qpdf/Buffer.hh
index d667c1a..eaa84c9 100644
--- a/include/qpdf/Buffer.hh
+++ b/include/qpdf/Buffer.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/BufferInputSource.hh b/include/qpdf/BufferInputSource.hh
index 90cdcdc..0b857b8 100644
--- a/include/qpdf/BufferInputSource.hh
+++ b/include/qpdf/BufferInputSource.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/ClosedFileInputSource.hh b/include/qpdf/ClosedFileInputSource.hh
index f93764d..56b2cb1 100644
--- a/include/qpdf/ClosedFileInputSource.hh
+++ b/include/qpdf/ClosedFileInputSource.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Constants.h b/include/qpdf/Constants.h
index 81b22da..4b32713 100644
--- a/include/qpdf/Constants.h
+++ b/include/qpdf/Constants.h
@@ -1,5 +1,5 @@
 /* Copyright (c) 2005-2021 Jay Berkenbilt
- * Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+ * Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
  *
  * This file is part of qpdf.
  *
diff --git a/include/qpdf/DLL.h b/include/qpdf/DLL.h
index db7e8b6..9587e04 100644
--- a/include/qpdf/DLL.h
+++ b/include/qpdf/DLL.h
@@ -1,5 +1,5 @@
 /* Copyright (c) 2005-2021 Jay Berkenbilt
- * Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+ * Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
  *
  * This file is part of qpdf.
  *
diff --git a/include/qpdf/FileInputSource.hh b/include/qpdf/FileInputSource.hh
index dbad8c5..af42400 100644
--- a/include/qpdf/FileInputSource.hh
+++ b/include/qpdf/FileInputSource.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/InputSource.hh b/include/qpdf/InputSource.hh
index 0ece2bb..bac54ea 100644
--- a/include/qpdf/InputSource.hh
+++ b/include/qpdf/InputSource.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/JSON.hh b/include/qpdf/JSON.hh
index f9de28f..3713e73 100644
--- a/include/qpdf/JSON.hh
+++ b/include/qpdf/JSON.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/ObjectHandle.hh b/include/qpdf/ObjectHandle.hh
index e8f7a47..9cf4dc6 100644
--- a/include/qpdf/ObjectHandle.hh
+++ b/include/qpdf/ObjectHandle.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/PDFVersion.hh b/include/qpdf/PDFVersion.hh
index b137c15..32b1df5 100644
--- a/include/qpdf/PDFVersion.hh
+++ b/include/qpdf/PDFVersion.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pipeline.hh b/include/qpdf/Pipeline.hh
index d818cad..6e07c4f 100644
--- a/include/qpdf/Pipeline.hh
+++ b/include/qpdf/Pipeline.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_Buffer.hh b/include/qpdf/Pl_Buffer.hh
index 722c8d4..b3b7ed6 100644
--- a/include/qpdf/Pl_Buffer.hh
+++ b/include/qpdf/Pl_Buffer.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_Concatenate.hh b/include/qpdf/Pl_Concatenate.hh
index 548765d..48a7ca8 100644
--- a/include/qpdf/Pl_Concatenate.hh
+++ b/include/qpdf/Pl_Concatenate.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_Count.hh b/include/qpdf/Pl_Count.hh
index 076106d..2189b81 100644
--- a/include/qpdf/Pl_Count.hh
+++ b/include/qpdf/Pl_Count.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_DCT.hh b/include/qpdf/Pl_DCT.hh
index 48607f4..48f2594 100644
--- a/include/qpdf/Pl_DCT.hh
+++ b/include/qpdf/Pl_DCT.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_Discard.hh b/include/qpdf/Pl_Discard.hh
index 400a2dc..b0073cd 100644
--- a/include/qpdf/Pl_Discard.hh
+++ b/include/qpdf/Pl_Discard.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_Flate.hh b/include/qpdf/Pl_Flate.hh
index 800f85f..2347a91 100644
--- a/include/qpdf/Pl_Flate.hh
+++ b/include/qpdf/Pl_Flate.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_Function.hh b/include/qpdf/Pl_Function.hh
index a0e3ada..081a4e1 100644
--- a/include/qpdf/Pl_Function.hh
+++ b/include/qpdf/Pl_Function.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_OStream.hh b/include/qpdf/Pl_OStream.hh
index 556cc90..0f912f7 100644
--- a/include/qpdf/Pl_OStream.hh
+++ b/include/qpdf/Pl_OStream.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_QPDFTokenizer.hh b/include/qpdf/Pl_QPDFTokenizer.hh
index 5d3fed1..e26b856 100644
--- a/include/qpdf/Pl_QPDFTokenizer.hh
+++ b/include/qpdf/Pl_QPDFTokenizer.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_RunLength.hh b/include/qpdf/Pl_RunLength.hh
index bebc425..4fc91fa 100644
--- a/include/qpdf/Pl_RunLength.hh
+++ b/include/qpdf/Pl_RunLength.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_StdioFile.hh b/include/qpdf/Pl_StdioFile.hh
index 9e0ad54..4c70528 100644
--- a/include/qpdf/Pl_StdioFile.hh
+++ b/include/qpdf/Pl_StdioFile.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Pl_String.hh b/include/qpdf/Pl_String.hh
index d4666a7..a907b44 100644
--- a/include/qpdf/Pl_String.hh
+++ b/include/qpdf/Pl_String.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/PointerHolder.hh b/include/qpdf/PointerHolder.hh
index a9563a0..2df2d25 100644
--- a/include/qpdf/PointerHolder.hh
+++ b/include/qpdf/PointerHolder.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QIntC.hh b/include/qpdf/QIntC.hh
index f0cf411..cef8aca 100644
--- a/include/qpdf/QIntC.hh
+++ b/include/qpdf/QIntC.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDF.hh b/include/qpdf/QPDF.hh
index 14cdbde..5f990b7 100644
--- a/include/qpdf/QPDF.hh
+++ b/include/qpdf/QPDF.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFAcroFormDocumentHelper.hh b/include/qpdf/QPDFAcroFormDocumentHelper.hh
index ef5c6b1..935e161 100644
--- a/include/qpdf/QPDFAcroFormDocumentHelper.hh
+++ b/include/qpdf/QPDFAcroFormDocumentHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFAnnotationObjectHelper.hh b/include/qpdf/QPDFAnnotationObjectHelper.hh
index 7aea177..1f50d80 100644
--- a/include/qpdf/QPDFAnnotationObjectHelper.hh
+++ b/include/qpdf/QPDFAnnotationObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFCryptoImpl.hh b/include/qpdf/QPDFCryptoImpl.hh
index 1eddcbd..34bbd98 100644
--- a/include/qpdf/QPDFCryptoImpl.hh
+++ b/include/qpdf/QPDFCryptoImpl.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFCryptoProvider.hh b/include/qpdf/QPDFCryptoProvider.hh
index 2f87b99..44d900c 100644
--- a/include/qpdf/QPDFCryptoProvider.hh
+++ b/include/qpdf/QPDFCryptoProvider.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFDocumentHelper.hh b/include/qpdf/QPDFDocumentHelper.hh
index 8b44263..67d42d4 100644
--- a/include/qpdf/QPDFDocumentHelper.hh
+++ b/include/qpdf/QPDFDocumentHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFEFStreamObjectHelper.hh b/include/qpdf/QPDFEFStreamObjectHelper.hh
index a211b2b..fec2325 100644
--- a/include/qpdf/QPDFEFStreamObjectHelper.hh
+++ b/include/qpdf/QPDFEFStreamObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFEmbeddedFileDocumentHelper.hh b/include/qpdf/QPDFEmbeddedFileDocumentHelper.hh
index 9db3674..12174d6 100644
--- a/include/qpdf/QPDFEmbeddedFileDocumentHelper.hh
+++ b/include/qpdf/QPDFEmbeddedFileDocumentHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFExc.hh b/include/qpdf/QPDFExc.hh
index edb989f..9038418 100644
--- a/include/qpdf/QPDFExc.hh
+++ b/include/qpdf/QPDFExc.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFFileSpecObjectHelper.hh b/include/qpdf/QPDFFileSpecObjectHelper.hh
index 6b6bde4..9a00e20 100644
--- a/include/qpdf/QPDFFileSpecObjectHelper.hh
+++ b/include/qpdf/QPDFFileSpecObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFFormFieldObjectHelper.hh b/include/qpdf/QPDFFormFieldObjectHelper.hh
index 691a93e..a929563 100644
--- a/include/qpdf/QPDFFormFieldObjectHelper.hh
+++ b/include/qpdf/QPDFFormFieldObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFJob.hh b/include/qpdf/QPDFJob.hh
index 3ea9b0c..cace443 100644
--- a/include/qpdf/QPDFJob.hh
+++ b/include/qpdf/QPDFJob.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFLogger.hh b/include/qpdf/QPDFLogger.hh
index 3a4f027..1e360be 100644
--- a/include/qpdf/QPDFLogger.hh
+++ b/include/qpdf/QPDFLogger.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFMatrix.hh b/include/qpdf/QPDFMatrix.hh
index 4e5fd39..37624df 100644
--- a/include/qpdf/QPDFMatrix.hh
+++ b/include/qpdf/QPDFMatrix.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFNameTreeObjectHelper.hh b/include/qpdf/QPDFNameTreeObjectHelper.hh
index ad93f8b..7677819 100644
--- a/include/qpdf/QPDFNameTreeObjectHelper.hh
+++ b/include/qpdf/QPDFNameTreeObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFNumberTreeObjectHelper.hh b/include/qpdf/QPDFNumberTreeObjectHelper.hh
index e691e7b..b7d7716 100644
--- a/include/qpdf/QPDFNumberTreeObjectHelper.hh
+++ b/include/qpdf/QPDFNumberTreeObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFObjGen.hh b/include/qpdf/QPDFObjGen.hh
index f984668..1f92488 100644
--- a/include/qpdf/QPDFObjGen.hh
+++ b/include/qpdf/QPDFObjGen.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFObject.hh b/include/qpdf/QPDFObject.hh
index 343e4e4..8499637 100644
--- a/include/qpdf/QPDFObject.hh
+++ b/include/qpdf/QPDFObject.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFObjectHandle.hh b/include/qpdf/QPDFObjectHandle.hh
index e7c0922..10a5244 100644
--- a/include/qpdf/QPDFObjectHandle.hh
+++ b/include/qpdf/QPDFObjectHandle.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFObjectHelper.hh b/include/qpdf/QPDFObjectHelper.hh
index 00f57e3..d19ba3b 100644
--- a/include/qpdf/QPDFObjectHelper.hh
+++ b/include/qpdf/QPDFObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFOutlineDocumentHelper.hh b/include/qpdf/QPDFOutlineDocumentHelper.hh
index d6f3ecc..66b4481 100644
--- a/include/qpdf/QPDFOutlineDocumentHelper.hh
+++ b/include/qpdf/QPDFOutlineDocumentHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFOutlineObjectHelper.hh b/include/qpdf/QPDFOutlineObjectHelper.hh
index 7b39bee..108ec59 100644
--- a/include/qpdf/QPDFOutlineObjectHelper.hh
+++ b/include/qpdf/QPDFOutlineObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFPageDocumentHelper.hh b/include/qpdf/QPDFPageDocumentHelper.hh
index 2820b93..a2cd9f8 100644
--- a/include/qpdf/QPDFPageDocumentHelper.hh
+++ b/include/qpdf/QPDFPageDocumentHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFPageLabelDocumentHelper.hh b/include/qpdf/QPDFPageLabelDocumentHelper.hh
index d04c6ce..51e2265 100644
--- a/include/qpdf/QPDFPageLabelDocumentHelper.hh
+++ b/include/qpdf/QPDFPageLabelDocumentHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFPageObjectHelper.hh b/include/qpdf/QPDFPageObjectHelper.hh
index 9df550b..ef8346e 100644
--- a/include/qpdf/QPDFPageObjectHelper.hh
+++ b/include/qpdf/QPDFPageObjectHelper.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFStreamFilter.hh b/include/qpdf/QPDFStreamFilter.hh
index e2c912f..5cba242 100644
--- a/include/qpdf/QPDFStreamFilter.hh
+++ b/include/qpdf/QPDFStreamFilter.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFSystemError.hh b/include/qpdf/QPDFSystemError.hh
index 90f0cfe..94e0ab0 100644
--- a/include/qpdf/QPDFSystemError.hh
+++ b/include/qpdf/QPDFSystemError.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFTokenizer.hh b/include/qpdf/QPDFTokenizer.hh
index 9478674..d94eb02 100644
--- a/include/qpdf/QPDFTokenizer.hh
+++ b/include/qpdf/QPDFTokenizer.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFUsage.hh b/include/qpdf/QPDFUsage.hh
index 810cc05..3c5da1b 100644
--- a/include/qpdf/QPDFUsage.hh
+++ b/include/qpdf/QPDFUsage.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFWriter.hh b/include/qpdf/QPDFWriter.hh
index 9f884d7..3c3c0b9 100644
--- a/include/qpdf/QPDFWriter.hh
+++ b/include/qpdf/QPDFWriter.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QPDFXRefEntry.hh b/include/qpdf/QPDFXRefEntry.hh
index 07ff16e..3739131 100644
--- a/include/qpdf/QPDFXRefEntry.hh
+++ b/include/qpdf/QPDFXRefEntry.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QTC.hh b/include/qpdf/QTC.hh
index 98696b7..a5ecadf 100644
--- a/include/qpdf/QTC.hh
+++ b/include/qpdf/QTC.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/QUtil.hh b/include/qpdf/QUtil.hh
index dd5acae..18d6083 100644
--- a/include/qpdf/QUtil.hh
+++ b/include/qpdf/QUtil.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/RandomDataProvider.hh b/include/qpdf/RandomDataProvider.hh
index e7eb504..c929f0f 100644
--- a/include/qpdf/RandomDataProvider.hh
+++ b/include/qpdf/RandomDataProvider.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/Types.h b/include/qpdf/Types.h
index fdc57a6..015cd22 100644
--- a/include/qpdf/Types.h
+++ b/include/qpdf/Types.h
@@ -1,5 +1,5 @@
 /* Copyright (c) 2005-2021 Jay Berkenbilt
- * Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+ * Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
  *
  * This file is part of qpdf.
  *
diff --git a/include/qpdf/global.hh b/include/qpdf/global.hh
index c78e43e..b99ee31 100644
--- a/include/qpdf/global.hh
+++ b/include/qpdf/global.hh
@@ -1,5 +1,5 @@
 // Copyright (c) 2005-2021 Jay Berkenbilt
-// Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+// Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
 //
 // This file is part of qpdf.
 //
diff --git a/include/qpdf/qpdf-c.h b/include/qpdf/qpdf-c.h
index 70f5acd..c602f9f 100644
--- a/include/qpdf/qpdf-c.h
+++ b/include/qpdf/qpdf-c.h
@@ -1,5 +1,5 @@
 /* Copyright (c) 2005-2021 Jay Berkenbilt
- * Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+ * Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
  *
  * This file is part of qpdf.
  *
diff --git a/include/qpdf/qpdfjob-c.h b/include/qpdf/qpdfjob-c.h
index 0862866..a00b923 100644
--- a/include/qpdf/qpdfjob-c.h
+++ b/include/qpdf/qpdfjob-c.h
@@ -1,5 +1,5 @@
 /* Copyright (c) 2005-2021 Jay Berkenbilt
- * Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+ * Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
  *
  * This file is part of qpdf.
  *
diff --git a/include/qpdf/qpdflogger-c.h b/include/qpdf/qpdflogger-c.h
index b3dbd30..b3d706a 100644
--- a/include/qpdf/qpdflogger-c.h
+++ b/include/qpdf/qpdflogger-c.h
@@ -1,5 +1,5 @@
 /* Copyright (c) 2005-2021 Jay Berkenbilt
- * Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger
+ * Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger
  *
  * This file is part of qpdf.
  *
diff --git a/libqpdf/QPDFJob_argv.cc b/libqpdf/QPDFJob_argv.cc
index 52a74ce..f46df2c 100644
--- a/libqpdf/QPDFJob_argv.cc
+++ b/libqpdf/QPDFJob_argv.cc
@@ -141,7 +141,7 @@ ArgParser::argCopyright()
         << " version " << QPDF::QPDFVersion() << "\n"
         << "\n"
         << "Copyright (c) 2005-2021 Jay Berkenbilt\n"
-        << "Copyright (c) 2022-2025 Jay Berkenbilt and Manfred Holger\n"
+        << "Copyright (c) 2022-2026 Jay Berkenbilt and Manfred Holger\n"
         << "\n"
         << "qpdf is licensed under the Apache License, Version 2.0 (the \"License\");\n"
         << "you may not use this file except in compliance with the License.\n"
diff --git a/manual/conf.py b/manual/conf.py
index 9ee84be..6537abe 100644
--- a/manual/conf.py
+++ b/manual/conf.py
@@ -13,7 +13,7 @@ import sys
 sys.path.append(os.path.abspath("./_ext"))
 
 project = 'qpdf'
-copyright = '2005-2021 Jay Berkenbilt, 2022-2025 Jay Berkenbilt and Manfred Holger'
+copyright = '2005-2021 Jay Berkenbilt, 2022-2026 Jay Berkenbilt and Manfred Holger'
 author = 'Jay Berkenbilt'
 here = os.path.dirname(os.path.realpath(__file__))
 with open(f'{here}/../CMakeLists.txt') as f:
diff --git a/qtest/bin/qtest-driver b/qtest/bin/qtest-driver
index aca3d54..9121105 100755
--- a/qtest/bin/qtest-driver
+++ b/qtest/bin/qtest-driver
@@ -2,7 +2,7 @@
 #
 # This file is part of qtest.
 #
-# Copyright 1993-2025, Jay Berkenbilt
+# Copyright 1993-2026, Jay Berkenbilt
 #
 # QTest is distributed under the terms of version 2.0 of the Artistic
 # license which may be found in the source distribution.
diff --git a/qtest/module/TestDriver.pm b/qtest/module/TestDriver.pm
index c3c6246..7878773 100644
--- a/qtest/module/TestDriver.pm
+++ b/qtest/module/TestDriver.pm
@@ -2,7 +2,7 @@
 #
 # This file is part of qtest.
 #
-# Copyright 1993-2025, Jay Berkenbilt
+# Copyright 1993-2026, Jay Berkenbilt
 #
 # QTest is distributed under the terms of version 2.0 of the Artistic
 # license which may be found in the source distribution.