diff --git a/filter/gstoraster.c b/filter/gstoraster.c
index 7fd9ccf..0c9f37d 100644
--- a/filter/gstoraster.c
+++ b/filter/gstoraster.c
@@ -906,7 +906,7 @@ main (int argc, char **argv, char *envp[])
   cupsArrayAdd(gs_args, strdup("-c"));
 
   /* Set margins if we have a bounding box defined */
-  if (h.cupsImagingBBox[3] > 0.0) {
+  if (h.cupsImagingBBox[3] > 0.0 && outformat != OUTPUT_FORMAT_PDF) {
     snprintf(tmpstr, sizeof(tmpstr),
 	     "<</.HWMargins[%f %f %f %f] /Margins[0 0]>>setpagedevice",
 	     h.cupsImagingBBox[0], h.cupsImagingBBox[1],