--- lib/gs_init.ps.orig	Sat Mar  5 07:02:23 2005
+++ lib/gs_init.ps	Thu Apr 21 13:05:43 2005
@@ -1440,7 +1440,7 @@
 % Set the default screen and BG/UCR.
 /.setdefaultbgucr {
   systemdict /setblackgeneration known {
-    { pop 0 } dup setblackgeneration setundercolorremoval
+    {} dup setblackgeneration setundercolorremoval
   } if
 } bind def
 /.useloresscreen {	% - .useloresscreen <bool>
@@ -2241,3 +2241,7 @@
 ifelse
 
 % The interpreter will run the initial procedure (start).
+
+% unofficial patch:
+% make it possible to print from within acroread pdf viewer
+/Default currenthalftone /Halftone defineresource pop