File ghostscript-8.64-pdf.dif of Package ghostscript-library

--- Resource/Init/pdf_main.ps
+++ Resource/Init/pdf_main.ps	2009-06-16 12:41:58.713901311 +0200
@@ -1436,11 +1436,15 @@ currentdict /PDF2PS_matrix_key undef
   % Determine the number of spot colors used on the page.  Note: This searches
   % the pages resources.  It may be high if a spot color is in a resource but
   % is not actually used on the page.
-  /PageSpotColors 2 index countspotcolors def
+  currentpagedevice /PageSpotColors known {
+    /PageSpotColors 2 index countspotcolors def
+  } if
 
   % Let the device know if we will be using PDF 1.4 transparency.
   % The clist logic may need to adjust the size of bands.
-  1 index pageusestransparency /PageUsesTransparency exch def
+  currentpagedevice /PageUsesTransparency known {
+    1 index pageusestransparency /PageUsesTransparency exch def
+  } if
   dup /Install .knownget {
 			% Don't let the Install procedure get more deeply
 			% nested after every page.
@@ -1567,7 +1571,9 @@ currentdict /PDF2PS_matrix_key undef
   end			% scratch dict
   % Indicate that the number of spot colors is unknown in case the next page
   % imaged is a PS file.
-  << /PageSpotColors -1 >> .setpagedevice
+  currentpagedevice /PageSpotColors known {
+    << /PageSpotColors -1 >> .setpagedevice
+  } if
   % Some PDF files don't have matching q/Q (gsave/grestore) so we need
   % to clean up any left over dicts from the dictstack
   countdictstack PDFdictstackcount sub dup 0 ne { 
--- base/gdevbbox.c
+++ base/gdevbbox.c	2007-08-06 12:36:13.000000000 +0200
@@ -1173,6 +1173,17 @@ bbox_create_compositor(gx_device * dev,
 {
     gx_device_bbox *const bdev = (gx_device_bbox *) dev;
     gx_device *target = bdev->target;
+    const gs_state *ps = (const gs_state *)pis;
+
+    /*
+     * Do not create a compositor for the target if overprint is active,
+     * this because then it is possible that the current page is erased
+     * for a bbox which equals the current page.
+     */
+    if (gs_currentoverprint(ps) || gs_currentoverprintmode(ps)) {
+	*pcdev = dev;
+	return 0;
+    }
 
     /*
      * If there isn't a target, all we care about is the bounding box,