diff --git a/pixelocr/gui/__init__.py b/pixelocr/gui/__init__.py
index b0038ba..315605e 100644
--- a/pixelocr/gui/__init__.py
+++ b/pixelocr/gui/__init__.py
@@ -1,15 +1,15 @@
 # Copyright (C) 2014  Andrey Golovizin
-# 
+#
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
diff --git a/pixelocr/gui/pageview.py b/pixelocr/gui/pageview.py
index 9a1443b..3671f1b 100644
--- a/pixelocr/gui/pageview.py
+++ b/pixelocr/gui/pageview.py
@@ -1,15 +1,15 @@
 # Copyright (C) 2014  Andrey Golovizin
-# 
+#
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
diff --git a/pixelocr/gui/window.py b/pixelocr/gui/window.py
index bfff405..09ece52 100644
--- a/pixelocr/gui/window.py
+++ b/pixelocr/gui/window.py
@@ -1,15 +1,15 @@
 # Copyright (C) 2014  Andrey Golovizin
-# 
+#
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
diff --git a/pixelocr/image.py b/pixelocr/image.py
index 2d7b6a6..762fb2f 100644
--- a/pixelocr/image.py
+++ b/pixelocr/image.py
@@ -1,15 +1,15 @@
 # Copyright (C) 2014  Andrey Golovizin
-# 
+#
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
diff --git a/pixelocr/page.py b/pixelocr/page.py
index 646a2a8..dd9e75f 100644
--- a/pixelocr/page.py
+++ b/pixelocr/page.py
@@ -1,15 +1,15 @@
 # Copyright (C) 2014  Andrey Golovizin
-# 
+#
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
diff --git a/pixelocr/utils.py b/pixelocr/utils.py
index df3d9a4..8fbb0a4 100644
--- a/pixelocr/utils.py
+++ b/pixelocr/utils.py
@@ -1,15 +1,15 @@
 # Copyright (C) 2014  Andrey Golovizin
-# 
+#
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.