3 files changed, 32 insertions, 1 deletions
diff --git a/include/vcl/filter/PDFiumLibrary.hxx b/include/vcl/filter/PDFiumLibrary.hxx
index 3a4d0d83faf6..8274ded92e1f 100644
--- a/include/vcl/filter/PDFiumLibrary.hxx
+++ b/include/vcl/filter/PDFiumLibrary.hxx
@@ -33,6 +33,7 @@
 #include <vcl/pdf/PDFFillMode.hxx>
 #include <vcl/pdf/PDFFindFlags.hxx>
 #include <vcl/pdf/PDFErrorType.hxx>
+#include <vcl/pdf/PDFFormFieldType.hxx>
 
 class SvMemoryStream;
 
@@ -100,6 +101,7 @@ public:
     virtual size_t getAttachmentPointsCount() = 0;
     virtual std::vector<basegfx::B2DPoint> getAttachmentPoints(size_t nIndex) = 0;
     virtual std::vector<basegfx::B2DPoint> getLineGeometry() = 0;
+    virtual PDFFormFieldType getFormFieldType(PDFiumDocument* pDoc) = 0;
 };
 
 class PDFiumTextPage;
diff --git a/include/vcl/pdf/PDFFormFieldType.hxx b/include/vcl/pdf/PDFFormFieldType.hxx
new file mode 100644
index 000000000000..96be9bffc188
--- /dev/null
+++ b/include/vcl/pdf/PDFFormFieldType.hxx
@@ -0,0 +1,29 @@
+/* -*- 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/.
+ *
+ */
+
+#pragma once
+
+namespace vcl::pdf
+{
+enum class PDFFormFieldType
+{
+    Unknown = 0,
+    PushButton = 1,
+    CheckBox = 2,
+    RadioButton = 3,
+    ComboBox = 4,
+    ListBox = 5,
+    TextField = 6,
+    Signature = 7
+};
+
+} // namespace vcl::pdf
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/vcl/pdfwriter.hxx b/include/vcl/pdfwriter.hxx
index cb008fcec280..8860675de688 100644
--- a/include/vcl/pdfwriter.hxx
+++ b/include/vcl/pdfwriter.hxx
@@ -334,7 +334,7 @@ public:
         }
     };
 
-    struct CheckBoxWidget final : public AnyWidget
+    struct VCL_DLLPUBLIC CheckBoxWidget final : public AnyWidget
     {
         bool                Checked;
         OUString            OnValue; // the value of the checkbox if it is selected