fix pdf fields extract

lib/templates/find_acro_fields.rb

@@ -32,8 +32,8 @@ module Templates
     module_function
 
     # rubocop:disable Metrics
-    def call(pdf, attachment)
-      return [] unless pdf.acro_form
+    def call(pdf, attachment, data)
+      return [] if pdf.acro_form.blank? && data.exclude?('/Form')
 
       fields, annots_index = build_fields_with_pages(pdf)
 

lib/templates/process_document.rb

@@ -22,7 +22,7 @@ module Templates
         if extract_fields && data.size < MAX_FLATTEN_FILE_SIZE
           pdf = HexaPDF::Document.new(io: StringIO.new(data))
 
-          fields = Templates::FindAcroFields.call(pdf, attachment)
+          fields = Templates::FindAcroFields.call(pdf, attachment, data)
         end
 
         generate_pdf_preview_images(attachment, data, pdf, max_pages:)