fix form cells

lib/templates/find_acro_fields.rb

@@ -78,7 +78,7 @@ module Templates
           next if attrs[:w].zero? || attrs[:h].zero?
 
           if child_field[:MaxLen] && child_field.try(:concrete_field_type) == :comb_text_field
-            attrs[:cell_w] = w / page_width / child_field[:MaxLen].to_f
+            attrs[:cell_w] = w / page_width.to_f / child_field[:MaxLen].to_f
           end
 
           attrs