use SL::System::TaskServer;
 use Rose::Object::MakeMethods::Generic
 (
-  'scalar --get_set_init' => [ qw(invoice_models invoice_ids sales_delivery_order_models printers default_printer_id today) ],
+  'scalar --get_set_init' => [ qw(invoice_models invoice_ids sales_delivery_order_models printers default_printer_id today all_businesses) ],
 );
 
 __PACKAGE__->run_before('setup');
     return $self->redirect_to(action => 'list_invoices');
   }
 
-  $self->download_or_print_documents(printer_id => $::form->{printer_id}, invoices => \@invoices);
+  $self->download_or_print_documents(printer_id => $::form->{printer_id}, invoices => \@invoices, bothsided => $::form->{bothsided});
 }
 
 sub action_create_print_all_start {
   return $pr ? $pr->id : undef;
 }
 
+sub init_all_businesses {
+  return SL::DB::Manager::Business->get_all_sorted;
+}
+
 sub setup {
   my ($self) = @_;
   $::auth->assert('invoice_edit');
       });
 
     @pdf_file_names = $self->create_pdfs(%pdf_params);
-    my $merged_pdf  = $self->merge_pdfs(file_names => \@pdf_file_names);
+    my $merged_pdf  = $self->merge_pdfs(file_names => \@pdf_file_names, bothsided => $params{bothsided});
     unlink @pdf_file_names;
 
     if (!$params{printer_id}) {