--- /dev/null
+<%
+
+#untaint invnum
+my($query) = $cgi->keywords;
+$query =~ /^(\d+)$/;
+my $invnum = $1;
+
+my $cust_bill = qsearchs('cust_bill',{'invnum'=>$invnum});
+die "Invoice #$invnum not found!" unless $cust_bill;
+
+http_header('Content-Type' => 'application/postscript' );
+%>
+<%= $cust_bill->print_ps %>