diff --git a/pagetools.changes b/pagetools.changes
index 3d5cd86..f3af4e0 100644
--- a/pagetools.changes
+++ b/pagetools.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed May 27 08:31:47 UTC 2020 - Martin Pluskal <mpluskal@suse.com>
+
+- Modernise spec file
+
 -------------------------------------------------------------------
 Wed Sep 21 12:36:10 UTC 2016 - mpluskal@suse.com
 
diff --git a/pagetools.spec b/pagetools.spec
index 3ece075..da0415f 100644
--- a/pagetools.spec
+++ b/pagetools.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package pagetools
 #
-# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2020 SUSE LLC
 # Copyright (c) 2016 Víctor Cuadrado Juan <vcuadradojuan@suse.de>
 #
 # All modifications and additions to the file contributed by third parties
@@ -13,7 +13,7 @@
 # license that conforms to the Open Source Definition (Version 1.9)
 # published by the Open Source Initiative.
 
-# Please submit bugfixes or comments via http://bugs.opensuse.org/
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
 #
 
 
@@ -21,15 +21,16 @@ Name:           pagetools
 Version:        0.1
 Release:        0
 Summary:        Automatic de-skew and bounding box determination for scanned page images
-License:        GPL-2.0+
+License:        GPL-2.0-or-later
 Group:          Productivity/Graphics/Convertors
-Url:            http://sourceforge.net/projects/pagetools
+URL:            https://sourceforge.net/projects/pagetools
 Source0:        https://sourceforge.net/projects/pagetools/files/pagetools/%{version}/pagetools-%{version}.tar.gz
 Patch0:         01-makefile-clean-fix.patch
 Patch1:         02-makefile-ldflags-add.patch
 Patch2:         03-pbmfact.patch
 BuildRequires:  gcc-c++
 BuildRequires:  libnetpbm-devel
+BuildRequires:  pkgconfig
 BuildRequires:  pkgconfig(libtiff-4)
 
 %description
@@ -40,26 +41,27 @@ program is part of the Page Layout Detection Tools project, which aims to
 automate the layout detection in scanned page images.
 
 %prep
-%setup -q -c
-%patch0
-%patch1
-%patch2
+%autosetup -c -p0
 
 %build
-make %{?_smp_mflags} C++_FLAGS="%{optflags}"
+%make_build C++_FLAGS="%{optflags}"
 
 %install
-install -D -p -m 0755 pbm_findskew/pbm_findskew     %{buildroot}%{_bindir}/pbm_findskew
-install -D -p -m 0755 tiff_findskew/tiff_findskew   %{buildroot}%{_bindir}/tiff_findskew
-install -D -p -m 0644 pbm_findskew/pbm_findskew.1   %{buildroot}%{_mandir}/man1/pbm_findskew.1
-install -D -p -m 0644 tiff_findskew/tiff_findskew.1 %{buildroot}%{_mandir}/man1/tiff_findskew.1
+install -Dpm 0755 pbm_findskew/pbm_findskew \
+  %{buildroot}%{_bindir}/pbm_findskew
+install -Dpm 0755 tiff_findskew/tiff_findskew \
+  %{buildroot}%{_bindir}/tiff_findskew
+install -Dpm 0644 pbm_findskew/pbm_findskew.1 \
+  %{buildroot}%{_mandir}/man1/pbm_findskew.1
+install -Dpm 0644 tiff_findskew/tiff_findskew.1 \
+  %{buildroot}%{_mandir}/man1/tiff_findskew.1
 
 %files
-%defattr(-,root,root,-)
-%doc COPYING README.txt TODO
+%license COPYING
+%doc README.txt TODO
 %{_bindir}/pbm_findskew
 %{_bindir}/tiff_findskew
-%{_mandir}/man1/pbm_findskew.1%{ext_man}
-%{_mandir}/man1/tiff_findskew.1%{ext_man}
+%{_mandir}/man1/pbm_findskew.1%{?ext_man}
+%{_mandir}/man1/tiff_findskew.1%{?ext_man}
 
 %changelog