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diff --git a/sw/inc/UndoParagraphSignature.hxx b/sw/inc/UndoParagraphSignature.hxx
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+++ b/sw/inc/UndoParagraphSignature.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_SW_INC_UNDOPARAGRAPHSIGNATURE_HXX
+#define INCLUDED_SW_INC_UNDOPARAGRAPHSIGNATURE_HXX
+
+#include "undobj.hxx"
+#include <rtl/ustring.hxx>
+
+#include <com/sun/star/uno/Reference.hxx>
+
+class SwDoc;
+
+namespace com::sun::star::text { class XTextContent; }
+namespace com::sun::star::text { class XTextField; }
+
+/// Undo/Redo Paragraph Signature.
+class SwUndoParagraphSigning final : public SwUndo
+{
+private:
+    SwDoc* m_pDoc;
+    css::uno::Reference<css::text::XTextField> m_xField;
+    css::uno::Reference<css::text::XTextContent> m_xParent;
+    OUString m_signature;
+    OUString m_usage;
+    OUString m_display;
+    const bool m_bRemove;
+
+public:
+    SwUndoParagraphSigning(SwDoc* pDoc,
+                           const css::uno::Reference<css::text::XTextField>& xField,
+                           const css::uno::Reference<css::text::XTextContent>& xParent,
+                           const bool bRemove);
+
+    virtual void UndoImpl(::sw::UndoRedoContext&) override;
+    virtual void RedoImpl(::sw::UndoRedoContext&) override;
+    virtual void RepeatImpl(::sw::RepeatContext&) override;
+
+private:
+    void Insert();
+    void Remove();
+};
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */