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diff --git a/include/vcl/vectorgraphicdata.hxx b/include/vcl/vectorgraphicdata.hxx
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+++ b/include/vcl/vectorgraphicdata.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_VCL_VECTORGRAPHICDATA_HXX
+#define INCLUDED_VCL_VECTORGRAPHICDATA_HXX
+
+#include <basegfx/range/b2drange.hxx>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <vcl/bitmapex.hxx>
+#include <rtl/ustring.hxx>
+#include <deque>
+#include <memory>
+#include <algorithm>
+
+namespace com::sun::star::graphic { class XPrimitive2D; }
+struct WmfExternal;
+
+typedef css::uno::Sequence<sal_Int8> VectorGraphicDataArray;
+
+
+// helper to convert any Primitive2DSequence to a good quality BitmapEx,
+// using default parameters and graphic::XPrimitive2DRenderer
+
+BitmapEx VCL_DLLPUBLIC convertPrimitive2DSequenceToBitmapEx(
+    const std::deque< css::uno::Reference< css::graphic::XPrimitive2D > >& rSequence,
+    const basegfx::B2DRange& rTargetRange,
+    const sal_uInt32 nMaximumQuadraticPixels = 500000);
+
+
+enum class VectorGraphicDataType
+{
+    Svg = 0,
+    Emf = 1,
+    Wmf = 2,
+    Pdf = 3
+};
+
+class VCL_DLLPUBLIC VectorGraphicData
+{
+private:
+    // the file and length
+    VectorGraphicDataArray      maVectorGraphicDataArray;
+
+    // The absolute Path if available
+    OUString                    maPath;
+
+    // on demand created content
+    bool                        mbSequenceCreated;
+    basegfx::B2DRange           maRange;
+    std::deque< css::uno::Reference< css::graphic::XPrimitive2D > > maSequence;
+    BitmapEx                    maReplacement;
+    size_t                      mNestedBitmapSize;
+    VectorGraphicDataType       meVectorGraphicDataType;
+
+    // extra:
+    std::unique_ptr<WmfExternal> mpExternalHeader;
+
+    // If the vector format has more pages this denotes which page to render
+    sal_Int32 mnPageIndex;
+
+    /// Useful for PDF, which is vector-based, but still rendered to a bitmap.
+    basegfx::B2DTuple maSizeHint;
+
+    // on demand creators
+    void ensurePdfReplacement();
+    void ensureReplacement();
+    void ensureSequenceAndRange();
+
+    VectorGraphicData(const VectorGraphicData&) = delete;
+    VectorGraphicData& operator=(const VectorGraphicData&) = delete;
+
+public:
+    VectorGraphicData(
+        const VectorGraphicDataArray& rVectorGraphicDataArray,
+        const OUString& rPath,
+        VectorGraphicDataType eVectorDataType,
+        sal_Int32 nPageIndex = -1);
+    VectorGraphicData(const OUString& rPath, VectorGraphicDataType eVectorDataType);
+    ~VectorGraphicData();
+
+    /// compare op
+    bool operator==(const VectorGraphicData& rCandidate) const;
+
+    /// special: needed for emf/wmf, maybe replaced by scaling the result later (?)
+    void setWmfExternalHeader(const WmfExternal& aExtHeader);
+
+    /// data read
+    const VectorGraphicDataArray& getVectorGraphicDataArray() const { return maVectorGraphicDataArray; }
+    sal_uInt32 getVectorGraphicDataArrayLength() const { return maVectorGraphicDataArray.getLength(); }
+    enum class State { UNPARSED, PARSED };
+    std::pair<State, size_t> getSizeBytes() const;
+    const OUString& getPath() const { return maPath; }
+    const VectorGraphicDataType& getVectorGraphicDataType() const { return meVectorGraphicDataType; }
+
+    /// data read and evtl. on demand creation
+    const basegfx::B2DRange& getRange() const;
+    const std::deque< css::uno::Reference< css::graphic::XPrimitive2D > >& getPrimitive2DSequence() const;
+    const BitmapEx& getReplacement() const;
+    BitmapChecksum GetChecksum() const;
+
+    sal_Int32 getPageIndex() const { return std::max(sal_Int32(0), mnPageIndex); }
+
+    void setSizeHint(const basegfx::B2DTuple& rSizeHint)
+    {
+        maSizeHint = rSizeHint;
+    }
+
+    const basegfx::B2DTuple& getSizeHint() const { return maSizeHint; }
+
+    bool isPrimitiveSequenceCreated() const { return mbSequenceCreated; }
+};
+
+#endif // INCLUDED_VCL_VECTORGRAPHICDATA_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */