1 files changed, 42 insertions, 0 deletions
diff --git a/vcl/inc/pdf/pdfcompat.hxx b/vcl/inc/pdf/pdfcompat.hxx
new file mode 100644
index 000000000..8f629b3bc
--- /dev/null
+++ b/vcl/inc/pdf/pdfcompat.hxx
@@ -0,0 +1,42 @@
+/* -*- 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
+
+#include <config_features.h>
+#include <tools/gen.hxx>
+#include <tools/stream.hxx>
+#include <tools/UnitConversion.hxx>
+#include <vcl/graph.hxx>
+
+namespace vcl::pdf
+{
+/// Convert to inch, then assume 96 DPI.
+inline double pointToPixel(const double fPoint, const double fResolutionDPI)
+{
+    return o3tl::convert(fPoint, o3tl::Length::pt, o3tl::Length::in) * fResolutionDPI;
+}
+
+/// Decide if PDF data is old enough to be compatible.
+bool isCompatible(SvStream& rInStream, sal_uInt64 nPos, sal_uInt64 nSize);
+
+/// Converts to highest supported format version (currently 1.6).
+/// Usually used to deal with missing referenced objects in the
+/// source pdf stream.
+bool convertToHighestSupported(SvStream& rInStream, SvStream& rOutStream);
+
+/// Takes care of transparently downgrading the version of the PDF stream in
+/// case it's too new for our PDF export.
+bool getCompatibleStream(SvStream& rInStream, SvStream& rOutStream);
+
+BinaryDataContainer createBinaryDataContainer(SvStream& rStream);
+
+} // end of vcl::filter::ipdf namespace
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */