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diff --git a/sdext/source/pdfimport/inc/treevisitorfactory.hxx b/sdext/source/pdfimport/inc/treevisitorfactory.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_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITORFACTORY_HXX
+#define INCLUDED_SDEXT_SOURCE_PDFIMPORT_INC_TREEVISITORFACTORY_HXX
+
+#include <memory>
+
+namespace pdfi
+{
+    struct ElementTreeVisitor;
+    struct EmitContext;
+    class PDFIProcessor;
+    class StyleContainer;
+
+    /** Tree manipulation factory
+
+        Creates visitor objects performing various operations on the
+        pdf parse tree
+     */
+    struct TreeVisitorFactory
+    {
+        virtual ~TreeVisitorFactory() {}
+
+        /// Create visitor that combines tree nodes
+        virtual std::shared_ptr<ElementTreeVisitor> createOptimizingVisitor(PDFIProcessor&) const = 0;
+        /// Create visitor that prepares style info
+        virtual std::shared_ptr<ElementTreeVisitor> createStyleCollectingVisitor(
+            StyleContainer&, PDFIProcessor&) const = 0;
+        /// Create visitor that emits tree to an output target
+        virtual std::shared_ptr<ElementTreeVisitor> createEmittingVisitor(EmitContext&) const = 0;
+    };
+
+    typedef std::shared_ptr<TreeVisitorFactory> TreeVisitorFactorySharedPtr;
+
+    TreeVisitorFactorySharedPtr createWriterTreeVisitorFactory();
+    TreeVisitorFactorySharedPtr createImpressTreeVisitorFactory();
+    TreeVisitorFactorySharedPtr createDrawTreeVisitorFactory();
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */