diff --git a/BGL/include/CGAL/boost/graph/IO/polygon_mesh_io.h b/BGL/include/CGAL/boost/graph/IO/polygon_mesh_io.h
new file mode 100644
index 00000000000..2d54e7c7494
--- /dev/null
+++ b/BGL/include/CGAL/boost/graph/IO/polygon_mesh_io.h
@@ -0,0 +1,87 @@
+// Copyright (c) 2020  GeometryFactory Sarl (France).
+// All rights reserved.
+//
+// Licensees holding a valid commercial license may use this file in
+// accordance with the commercial license agreement provided with the software.
+//
+// This file is part of CGAL (www.cgal.org)
+//
+// $URL$
+// $Id$
+// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
+//
+// Author(s)     : Mael Rouxel-Labbé
+
+#ifndef CGAL_BGL_IO_POLYGON_MESH_IO_H
+#define CGAL_BGL_IO_POLYGON_MESH_IO_H
+
+#include <CGAL/boost/graph/IO/GOCAD.h>
+#include <CGAL/boost/graph/IO/INP.h>
+#include <CGAL/boost/graph/IO/OBJ.h>
+#include <CGAL/boost/graph/IO/OFF.h>
+#include <CGAL/boost/graph/IO/STL.h>
+#include <CGAL/boost/graph/IO/VTK.h>
+#include <CGAL/boost/graph/IO/WRL.h>
+
+#include <algorithm>
+#include <iostream>
+#include <string>
+
+namespace CGAL {
+
+// @todo also need named parameters overload
+template <typename FaceGraph>
+bool read_polygon_mesh(const std::string& filename,
+                       FaceGraph& g)
+{
+  std::string::size_type dot(filename.rfind("."));
+  if(dot == std::string::npos)
+    return false;
+
+  std::string ext = filename.substr(dot+1, filename.length() - dot - 1);
+  std::transform(ext.begin(), ext.end(), ext.begin(), ::tolower);
+
+  // extension determines reader
+  if(ext == "obj")
+    return read_OBJ(filename, g);
+  else if(ext == "off") // @fixme coff, stoff, etc.
+    return read_OFF(filename, g);
+  else if(ext == "ply")
+    return read_PLY(filename, g);
+  else if(ext == "stl")
+    return read_STL(filename, g);
+
+  std::cerr << "Cannot open file with extension: " << ext << std::endl;
+
+  return false;
+}
+
+template <typename FaceGraph>
+bool write_polygon_mesh(const std::string& filename,
+                        const FaceGraph& g)
+{
+  std::string::size_type dot(filename.rfind("."));
+  if(dot == std::string::npos)
+    return false;
+
+  std::string ext = filename.substr(dot+1, filename.length()-dot-1);
+  std::transform(ext.begin(), ext.end(), ext.begin(), ::tolower);
+
+  // extension determines writer
+  if(ext == "obj")
+    return write_OBJ(filename, g);
+  else if(ext == "off") // @fixme coff, stoff, etc.
+    return write_OFF(filename, g);
+  else if(ext == "ply")
+    return write_PLY(filename, g);
+  else if(ext == "stl")
+    return write_STL(filename, g);
+
+  std::cerr << "Cannot open file with extension: " << ext << std::endl;
+
+  return false;
+}
+
+} // namespace CGAL
+
+#endif // CGAL_BGL_IO_POLYGON_MESH_IO_H
diff --git a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h
new file mode 100644
index 00000000000..43ab697af4b
--- /dev/null
+++ b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/IO/polygon_mesh_io.h
@@ -0,0 +1,67 @@
+// Copyright (c) 2020  GeometryFactory Sarl (France).
+// All rights reserved.
+//
+// Licensees holding a valid commercial license may use this file in
+// accordance with the commercial license agreement provided with the software.
+//
+// This file is part of CGAL (www.cgal.org)
+//
+// $URL$
+// $Id$
+// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
+//
+// Author(s)     : Mael Rouxel-Labbé
+
+#ifndef CGAL_PMP_IO_POLYGON_MESH_IO_H
+#define CGAL_PMP_IO_POLYGON_MESH_IO_H
+
+#include <CGAL/Polygon_mesh_processing/orient_polygon_soup.h>
+#include <CGAL/Polygon_mesh_processing/polygon_soup_to_polygon_mesh.h>
+
+#include <CGAL/IO/polygon_soup_io.h>
+#include <CGAL/boost/graph/IO/polygon_mesh_io.h>
+#include <CGAL/boost/graph/Named_function_parameters.h>
+
+#include <algorithm>
+#include <iostream>
+#include <string>
+#include <vector>
+
+namespace CGAL {
+namespace Polygon_mesh_processing {
+namespace IO {
+
+// @todo also need named parameters overload
+template <typename FaceGraph, typename CGAL_BGL_NP_TEMPLATE_PARAMETERS>
+bool read_polygon_mesh(const std::string& filename,
+                       FaceGraph& g,
+                       const CGAL_BGL_NP_CLASS& np)
+{
+  typedef typename CGAL::GetVertexPointMap<FaceGraph, CGAL_BGL_NP_CLASS>::type  VPM;
+  typedef typename boost::property_traits<VPM>::value_type                      Point;
+
+  bool ok = ::CGAL::read_polygon_mesh(filename, g, np);
+
+  if(!ok)
+  {
+    std::vector<Point> points;
+    std::vector<std::vector<std::size_t> > faces;
+    ok = CGAL::read_polygon_soup(in, points, faces, np);
+    if(!ok)
+      return false;
+
+    ok = CGAL::Polygon_mesh_processing::orient_polygon_soup(points, faces);
+    if(!ok)
+      return false;
+
+    CGAL::Polygon_mesh_processing::polygon_soup_to_polygon_mesh(points, faces, g);
+  }
+
+  return true;
+}
+
+} // namespace IO
+} // namespace Polygon_mesh_processing
+} // namespace CGAL
+
+#endif // CGAL_PMP_IO_POLYGON_MESH_IO_H
diff --git a/Stream_support/include/CGAL/IO/polygon_soup_io.h b/Stream_support/include/CGAL/IO/polygon_soup_io.h
new file mode 100644
index 00000000000..c3cbe81ce77
--- /dev/null
+++ b/Stream_support/include/CGAL/IO/polygon_soup_io.h
@@ -0,0 +1,91 @@
+// Copyright (c) 2020  GeometryFactory Sarl (France).
+// All rights reserved.
+//
+// Licensees holding a valid commercial license may use this file in
+// accordance with the commercial license agreement provided with the software.
+//
+// This file is part of CGAL (www.cgal.org)
+//
+// $URL$
+// $Id$
+// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
+//
+// Author(s)     : Mael Rouxel-Labbé
+
+#ifndef CGAL_IO_READ_POLYGON_SOUP_H
+#define CGAL_IO_READ_POLYGON_SOUP_H
+
+// #include <CGAL/IO/3MF.h>
+#include <CGAL/IO/OBJ.h>
+#include <CGAL/IO/OFF.h>
+// #include <CGAL/IO/OI.h>
+#include <CGAL/IO/PLY.h>
+#include <CGAL/IO/STL.h>
+// #include <CGAL/IO/VRML.h>
+// #include <CGAL/IO/VTK.h>
+// #include <CGAL/IO/WKT.h>
+
+#include <algorithm>
+#include <iostream>
+#include <string>
+#include <vector>
+
+namespace CGAL {
+
+template <typename PointRange, typename PolygonRange>
+bool read_polygon_soup(const std::string& filename,
+                       PointRange& points,
+                       PolygonRange& polygons)
+{
+  std::string::size_type dot(filename.rfind("."));
+  if(dot == std::string::npos)
+    return false;
+
+  std::string ext = filename.substr(dot+1, filename.length() - dot - 1);
+  std::transform(ext.begin(), ext.end(), ext.begin(), ::tolower);
+
+  // extension determines reader
+  if(ext == "obj")
+    return read_OBJ(filename, points, polygons);
+  else if(ext == "off") // @fixme coff, stoff, etc.
+    return read_OFF(filename, points, polygons);
+  else if(ext == "ply")
+    return read_PLY(filename, points, polygons);
+  else if(ext == "stl")
+    return read_STL(filename, points, polygons);
+
+  std::cerr << "Cannot open file with extension: " << ext << std::endl;
+
+  return false;
+}
+
+template <typename PointRange, typename PolygonRange>
+bool write_polygon_soup(const std::string& filename,
+                        const PointRange& points,
+                        const PolygonRange& polygons)
+{
+  std::string::size_type dot(filename.rfind("."));
+  if(dot == std::string::npos)
+    return false;
+
+  std::string ext = filename.substr(dot+1, filename.length()-dot-1);
+  std::transform(ext.begin(), ext.end(), ext.begin(), ::tolower);
+
+  // extension determines writer
+  if(ext == "obj")
+    return write_OBJ(filename, points, polygons);
+  else if(ext == "off") // @fixme coff, stoff, etc.
+    return write_OFF(filename, points, polygons);
+  else if(ext == "ply")
+    return write_PLY(filename, points, polygons);
+  else if(ext == "stl")
+    return write_STL(filename, points, polygons);
+
+  std::cerr << "Cannot open file with extension: " << ext << std::endl;
+
+  return false;
+}
+
+} // namespace CGAL
+
+#endif // CGAL_IO_READ_POLYGON_SOUP_H