diff -Nru pdfmod-0.8.3/debian/changelog pdfmod-0.8.3/debian/changelog
--- pdfmod-0.8.3/debian/changelog	2010-09-22 03:36:45.000000000 +0200
+++ pdfmod-0.8.3/debian/changelog	2011-02-22 10:31:31.000000000 +0100
@@ -1,3 +1,12 @@
+pdfmod (0.8.3-1ubuntu0.1) maverick-proposed; urgency=low
+
+  * debian/patches/0004-Avoid_XDG-related_crash_in_file_chooser.patch:
+    Backported upstream commit 1bf89353c53ee111c0088462557e2cc693dcdbbb
+    Avoid crash when XDG_DOCUMENTS_DIR or XDG_DOWNLOADS_DIR is not set 
+    (LP: #645137)
+
+ -- Marcel Stimberg <marcelcoding@googlemail.com>  Tue, 22 Feb 2011 10:31:31 +0100
+
 pdfmod (0.8.3-1build2) maverick; urgency=low
 
   * Really rebuild against libpoppler-glib5 and 
diff -Nru pdfmod-0.8.3/debian/control pdfmod-0.8.3/debian/control
--- pdfmod-0.8.3/debian/control	2010-09-22 03:27:12.000000000 +0200
+++ pdfmod-0.8.3/debian/control	2011-02-22 10:21:49.000000000 +0100
@@ -1,7 +1,8 @@
 Source: pdfmod
 Section: gnome
 Priority: optional
-Maintainer: Debian CLI Applications Team <pkg-cli-apps-team@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian CLI Applications Team <pkg-cli-apps-team@lists.alioth.debian.org>
 Uploaders: Chow Loong Jin <hyperair@ubuntu.com>
 Build-Depends: debhelper (>= 7.0.50),
                autotools-dev,
@@ -28,4 +29,3 @@
  remove and reoder pages via drag and drop. Multiple documents may be combined
  via drag and drop. You may also edit the title, subject, author and keywords of
  a PDF document using PDF Mod.
-
diff -Nru pdfmod-0.8.3/debian/patches/0004-Avoid_XDG-related_crash_in_file_chooser.patch pdfmod-0.8.3/debian/patches/0004-Avoid_XDG-related_crash_in_file_chooser.patch
--- pdfmod-0.8.3/debian/patches/0004-Avoid_XDG-related_crash_in_file_chooser.patch	1970-01-01 01:00:00.000000000 +0100
+++ pdfmod-0.8.3/debian/patches/0004-Avoid_XDG-related_crash_in_file_chooser.patch	2011-02-22 10:21:49.000000000 +0100
@@ -0,0 +1,31 @@
+Index: pdfmod/src/PdfMod/Gui/Client.cs
+===================================================================
+--- pdfmod.orig/src/PdfMod/Gui/Client.cs	2011-02-13 12:40:55.426117998 +0100
++++ pdfmod/src/PdfMod/Gui/Client.cs	2011-02-13 12:41:09.316117998 +0100
+@@ -377,14 +377,23 @@
+             chooser.AddFilter (GtkUtilities.GetFileFilter ("PDF Documents", new string [] {"pdf"}));
+             chooser.AddFilter (GtkUtilities.GetFileFilter (Catalog.GetString ("All Files"), new string [] {"*"}));
+ 
+-            var dirs = new string [] { "DOWNLOAD", "DOCUMENTS" }.Select (s =>
+-                XdgBaseDirectorySpec.GetXdgDirectoryUnderHome (String.Format ("XDG_{0}_DIR", s), null)
+-            ).Where (d => d != null).ToArray ();
++            var dirs = new string [] { "DOWNLOAD", "DOCUMENTS" }.Select (s => GetXdgDir (s))
++                                                                .Where (d => d != null)
++                                                                .ToArray ();
+             Hyena.Gui.GtkUtilities.SetChooserShortcuts (chooser, dirs);
+ 
+             return chooser;
+         }
+ 
++        private string GetXdgDir (string type)
++        {
++            try {
++                return XdgBaseDirectorySpec.GetXdgDirectoryUnderHome (String.Format ("XDG_{0}_DIR", type), null);
++            } catch {
++                return null;
++            }
++        }
++
+         static void OnLogNotify (LogNotifyArgs args)
+         {
+             ThreadAssist.ProxyToMain (delegate {
diff -Nru pdfmod-0.8.3/debian/patches/series pdfmod-0.8.3/debian/patches/series
--- pdfmod-0.8.3/debian/patches/series	2010-09-22 03:27:12.000000000 +0200
+++ pdfmod-0.8.3/debian/patches/series	2011-02-22 10:21:49.000000000 +0100
@@ -1,3 +1,4 @@
 0001-Autodetect-external-poppler-sharp.patch
 0002-Fix-PDFMod-s-compilation-to-choose-correct-Poppler.patch
 0003-Make-POPPLER_SHARP_DLL_CONFIG-conditional.patch
+0004-Avoid_XDG-related_crash_in_file_chooser.patch