diff --git a/app/controllers/archives_controller.rb b/app/controllers/archives_controller.rb
index 867ef4c..84b351f 100644
--- a/app/controllers/archives_controller.rb
+++ b/app/controllers/archives_controller.rb
@@ -231,7 +231,11 @@ class ArchivesController < ApplicationController
 				else
 					user_agent = request.user_agent.downcase
 					@escaped_file_name = user_agent.match(/(msie|trident)/) ? CGI::escape(@filename) : @filename
-					send_file(@path, :type=>"application/octet-stream", :filename => @escaped_file_name, :x_sendfile=> true)
+					if @ext == "pdf"
+                      send_file(@path, :type => "application/pdf", :disposition => "inline", :filename => @escaped_file_name, :x_sendfile => true)
+                    else
+                      send_file(@path, :type => "application/octet-stream", :filename => @escaped_file_name, :x_sendfile => true)
+                    end
 				end
 				#end
 			rescue