diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 64d03cbac..40c63caa6 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -25,7 +25,7 @@ class ApplicationController < ActionController::Base
 	def check_sign
 		Rails.logger.info("66666  #{params}")
 		suffix = request.url.split(".").last
-		suffix_arr = ["xls", "xlsx"] # excel文件先注释
+		suffix_arr = ["xls", "xlsx", "pdf"] # excel文件先注释
 		unless suffix_arr.include?(suffix)
 			if params[:client_key].present?
 				randomcode = params[:randomcode]