diff --git a/hoodle-core.cabal b/hoodle-core.cabal
--- a/hoodle-core.cabal
+++ b/hoodle-core.cabal
@@ -1,5 +1,5 @@
 Name:		hoodle-core
-Version:	0.7.0
+Version:	0.7.0.0
 Synopsis:	Core library for hoodle
 Description: 	Hoodle is a pen notetaking program written in haskell. 
                 hoodle-core is the core library written in haskell and 
diff --git a/src/Hoodle/ModelAction/File.hs b/src/Hoodle/ModelAction/File.hs
--- a/src/Hoodle/ModelAction/File.hs
+++ b/src/Hoodle/ModelAction/File.hs
@@ -23,8 +23,10 @@
 import           Data.Maybe 
 import           Graphics.UI.Gtk hiding (get,set)
 #ifdef POPPLER
+import qualified Data.ByteString.Char8 as C
 import qualified Graphics.UI.Gtk.Poppler.Document as Poppler
 import qualified Graphics.UI.Gtk.Poppler.Page as PopplerPage
+import           Graphics.Hoodle.Render.Background
 #endif
 import           System.FilePath (takeExtension)
 -- from hoodle-platform