fix pdf form flatten fields

Author: omohokcoj

lib/submissions/generate_result_attachments.rb

@@ -383,6 +383,7 @@ def build_pdfs_index(submitter, flatten: true)
 
         if flatten
           begin
+            pdf.acro_form.create_appearances(force: true) if pdf.acro_form && pdf.acro_form[:NeedAppearances]
             pdf.acro_form&.flatten
           rescue StandardError => e
             Rollbar.error(e) if defined?(Rollbar)

lib/templates/process_document.rb

@@ -74,15 +74,15 @@ def generate_pdf_preview_images(attachment, data)
       end
     end
 
-    def maybe_flatten_form(data, pdf, attachment)
+    def maybe_flatten_form(data, pdf)
       return data if data.size > MAX_FLATTEN_FILE_SIZE
       return data if pdf.acro_form.blank?
-      return data if attachment.record.account.account_configs
-                               .find_or_initialize_by(key: AccountConfig::FLATTEN_RESULT_PDF_KEY).value == false
 
       io = StringIO.new
 
-      pdf.acro_form&.flatten
+      pdf.acro_form.create_appearances(force: true) if pdf.acro_form[:NeedAppearances]
+      pdf.acro_form.flatten
+
       pdf.write(io, incremental: false, validate: false)
 
       io.string