sub add_font {
  my ($self, $font_name, $font_obj, $font_size) = @_;

  if ( $font_obj ) {
LINE 435 --> $self->current_page->text->font($font_obj, $font_size);
    $self->fonts->{$font_name} = $font_obj;
  }

  if ( ! exists $self->fonts->{$font_name} ) {
    $self->fonts->{$font_name} = $self->pdf->corefont($font_name);
  }

  $self->current_font( $self->fonts->{$font_name} );
}