diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index c310087f7..ec0480c19 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -62,6 +62,16 @@ class AttachmentsController < ApplicationController
     render :action => 'file'
   end
 
+  def pdf?(file)
+    file.downcase.end_with?(".pdf")
+  end
+
+  def direct_download
+    send_file @attachment.diskfile, :filename => filename_for_content_disposition(@attachment.filename),
+      :type => detect_content_type(@attachment),
+      :disposition => 'attachment'    #inline can open in browser
+  end
+
   def download
     # modify by nwb
     # 下载添加权限设置
@@ -69,20 +79,30 @@ class AttachmentsController < ApplicationController
     if candown || User.current.admin? || User.current.id == @attachment.author_id
       @attachment.increment_download
       if stale?(:etag => @attachment.digest)
-        convered_file = File.join(Rails.root, "files", "convered_office", @attachment.disk_filename + ".html")
-        if File.exist?(convered_file)
-          send_file convered_file,  :type => 'text/html; charset=utf-8', :disposition => 'inline'
+        if params[:force] == 'true'
+          direct_download
         else
-          send_file @attachment.diskfile, :filename => filename_for_content_disposition(@attachment.filename),
-            :type => detect_content_type(@attachment),
-            :disposition => 'attachment'    #inline can open in browser
+          convered_file = @attachment.diskfile
+          #如果本身不是pdf文件，则先寻找是不是已转换化，如果没有则转化
+          unless pdf?(convered_file)
+            convered_file = File.join(Rails.root, "files", "convered_office", @attachment.disk_filename + ".pdf")
+            unless File.exist?(convered_file)
+              office = Trustie::Utils::Office.new(@attachment.diskfile)
+              office.conver(convered_file)
+            end
+          end
+          if File.exist?(convered_file) && pdf?(convered_file)
+            send_file convered_file,  :type => 'application/pdf; charset=utf-8', :disposition => 'inline'
+          else
+            direct_download
+          end
         end
       end
     else
       render_403 :message => :notice_not_authorized
     end
   rescue => e
-    redirect_to "http:  //" + (Setting.host_name.to_s) +"/file_not_found.html"
+    redirect_to "http://" + (Setting.host_name.to_s) +"/file_not_found.html"
   end
 
   #更新资源文件类型
diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index 1e477ed04..f999e27d6 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -72,8 +72,8 @@ class Attachment < ActiveRecord::Base
   @@thumbnails_storage_path = File.join(Rails.root, "tmp", "thumbnails")
 
   before_save :files_to_final_location
-  after_create :office_conver, :be_user_score ,:act_as_forge_activity# user_score
-  after_update :be_user_score
+  after_create :office_conver, :be_user_score,:act_as_forge_activity# user_score
+  after_update :office_conver, :be_user_score
   after_destroy :delete_from_disk,:down_user_score
 
   # add by nwb
@@ -259,12 +259,14 @@ class Attachment < ActiveRecord::Base
   end
 
   def office_conver
-    saved_path = File.join(Rails.root, "files", "convered_office")
-    unless Dir.exist?(saved_path)
-      Dir.mkdir(saved_path)
-    end
-    convered_file = File.join(saved_path, self.disk_filename + ".html")
-    OfficeConverTask.new.conver(self.diskfile, convered_file)
+    # 不在这里做后台转换，换为点击时做转换
+    # return unless %w(Project Course).include? (self.container_type)
+    # saved_path = File.join(Rails.root, "files", "convered_office")
+    # unless Dir.exist?(saved_path)
+    #   Dir.mkdir(saved_path)
+    # end
+    # convered_file = File.join(saved_path, self.disk_filename + ".pdf")
+    # OfficeConverTask.new.conver(self.diskfile, convered_file)
   end
 
   # Copies the temporary file to its final location
diff --git a/app/views/files/_course_list.html.erb b/app/views/files/_course_list.html.erb
index 043aea489..1d5684d31 100644
--- a/app/views/files/_course_list.html.erb
+++ b/app/views/files/_course_list.html.erb
@@ -31,15 +31,16 @@
                       <%= link_to("选入我的其他课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select c_lorange",:remote => true) if has_course?(User.current,file) %>
 
                       <% if delete_allowed && file.container_id == @course.id && file.container_type == "Course"  %>
-              <span id="is_public_<%= file.id %>">
-                <%= link_to (file.is_public? ? "公开":"私有"), update_file_dense_attachments_path(:attachmentid=>file.id,:newtype=>(file.is_public? ? 0:1)),:remote=>true,:class=>"f_l re_open c_blue",:method => :post  %>
-              </span>
+                      <span id="is_public_<%= file.id %>">
+                        <%= link_to (file.is_public? ? "公开":"私有"), update_file_dense_attachments_path(:attachmentid=>file.id,:newtype=>(file.is_public? ? 0:1)),:remote=>true,:class=>"f_l re_open c_blue",:method => :post  %>
+                      </span>
                       <% else %>
                           <!--  <#%= link_to (file.is_public? ? "公开":"私有"),"javascript:void(0)",:class=>"f_l re_open" %> -->
                       <% end %>
                   <% else %>
                       <%= link_to("选入我的课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select c_lorange",:remote => true) if has_course?(User.current,file) %>
                   <% end %>
+                  <%= link_to '下载',download_named_attachment_path(file.id, file.filename, force: true),class: 'f_l re_open'  %>
               <% else %>
               <% end %>
             </div>
@@ -65,4 +66,4 @@
 <ul class="wlist">
   <%= pagination_links_full @obj_pages, @obj_count, :per_page_links => false, :remote => @is_remote, :flag => true%>
 </ul>
-<div class="cl"></div>
\ No newline at end of file
+<div class="cl"></div>
diff --git a/app/views/files/_project_file_list.html.erb b/app/views/files/_project_file_list.html.erb
index 35aa36195..a5152ecdc 100644
--- a/app/views/files/_project_file_list.html.erb
+++ b/app/views/files/_project_file_list.html.erb
@@ -30,6 +30,7 @@
               <% else %>
                   <%= link_to(l(:label_slected_to_project),quote_resource_show_project_project_file_path(project,file),:class => "f_l re_select",:remote => true) if has_project?(User.current,file) %>
               <% end %>
+              <%= link_to '下载',download_named_attachment_path(file.id, file.filename, force: true),class: 'f_l re_open'  %>
           <% end %>
         </div>
         <div class="cl"></div>
@@ -37,7 +38,7 @@
           <p class="f_l c_grey02 font">文件大小：<%= number_to_human_size(file.filesize) %></p>
           <%= link_to( l(:button_delete), attachment_path(file),
                        :data => {:confirm => l(:text_are_you_sure)}, :method => :delete,:class => "f_r re_de") if manage_allowed && file.container_id == project.id && file.container_type == "Project"%>
-          <p class="f_r c_grey02" ><%= time_tag(file.created_on).html_safe %><%= l(:label_bids_published_ago) %>&nbsp;&nbsp;|&nbsp;&nbsp;下载<%= file.downloads %>&nbsp;&nbsp;|&nbsp;&nbsp;引用<%= file.quotes.nil? ? 0:file.quotes  %> </p>
+                       <p class="f_r c_grey02" ><%= time_tag(file.created_on).html_safe %><%= l(:label_bids_published_ago) %>&nbsp;&nbsp;|&nbsp;&nbsp;下载<%= file.downloads %>&nbsp;&nbsp;|&nbsp;&nbsp;引用<%= file.quotes.nil? ? 0:file.quotes  %> </p>
         </div>
         <div class="cl"></div>
         <div class="tag_h">
@@ -51,4 +52,4 @@
 <ul class="wlist">
   <%= pagination_links_full @obj_pages, @obj_count, :per_page_links => false, :remote => @is_remote, :flag => true%>
 </ul>
-<div class="cl"></div>
\ No newline at end of file
+<div class="cl"></div>
diff --git a/app/views/memos/show.html.erb b/app/views/memos/show.html.erb
index 5452aa893..05358c32a 100644
--- a/app/views/memos/show.html.erb
+++ b/app/views/memos/show.html.erb
@@ -131,9 +131,9 @@
 					<%= link_to image_tag(url_to_avatar(reply.author), :class => "avatar"), user_path(reply.author) %>
 				</td>
 				<td class="comments" style="word-wrap: break-word;word-break: break-all;">
-						<div class="reply_content" >
-                          <%=h sanitize(reply.content.html_safe) %>
-                        </div>
+          <div class="reply_content" >
+            <%=h sanitize(reply.content.html_safe) %>
+          </div>
 						<p>
 							<% if reply.attachments.any?%>
 							    <% options = {:author => true, :deletable => reply.deleted_attach_able_by?(User.current) } %>
@@ -183,4 +183,4 @@
         });
     };
         $("img").removeAttr("align");
-</script>
\ No newline at end of file
+</script>
diff --git a/config/additional_environment.rb b/config/additional_environment.rb
deleted file mode 100644
index 5c73f6aab..000000000
--- a/config/additional_environment.rb
+++ /dev/null
@@ -1,3 +0,0 @@
-if Rails.env.production?
-  config.cache_store = :redis_store, 'redis://localhost:6379/0/cache', { expires_in: 90.minutes   }
-end
\ No newline at end of file
diff --git a/config/application.rb b/config/application.rb
index 9e7a2ba81..83ba21b05 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -67,6 +67,8 @@ module RedmineApp
     # Do not include all helpers
     config.action_controller.include_all_helpers = false
 
+    config.action_view.sanitized_allowed_tags = 'div', 'p', 'span', 'img', 'embed'
+
     if File.exists?(File.join(File.dirname(__FILE__), 'additional_environment.rb'))
       instance_eval File.read(File.join(File.dirname(__FILE__), 'additional_environment.rb'))
     end
diff --git a/lib/tasks/office.rake b/lib/tasks/office.rake
index 3e4c0a286..8bfc0c0ea 100644
--- a/lib/tasks/office.rake
+++ b/lib/tasks/office.rake
@@ -1,16 +1,18 @@
+#coding=utf-8
+
 namespace :office do
   desc "conver any files to html"
   task :conver => :environment do
-    all_count = Attachment.count
+    all_count = Attachment.where(["container_type IN (?)", %w(Project Course)]).count
     i = 0
-    Attachment.find_each do |a|
+    Attachment.where(["container_type IN (?)", %w(Project Course)]).find_each do |a|
       i += 1
       puts "process [#{i}/#{all_count}] => id #{a.id}"
       saved_path = File.join(Rails.root, "files", "convered_office")
       unless Dir.exist?(saved_path)
         Dir.mkdir(saved_path)
       end
-      convered_file = File.join(saved_path, a.disk_filename + ".html")
+      convered_file = File.join(saved_path, a.disk_filename + ".pdf")
       office = Trustie::Utils::Office.new(a.diskfile)
       if office.conver(convered_file)
         puts "process ok: #{convered_file} "
diff --git a/lib/trustie/utils/office.rb b/lib/trustie/utils/office.rb
index 1bc18cb84..2b4a5f1ac 100644
--- a/lib/trustie/utils/office.rb
+++ b/lib/trustie/utils/office.rb
@@ -1,3 +1,5 @@
+#coding=utf-8
+
 module Trustie
   module Utils
     class Office
@@ -7,7 +9,7 @@ module Trustie
       end
 
       def office?
-        %w(doc docx ppt pptx xls xlsx pdf).any?{|word| @file.downcase.end_with?(word)}
+        %w(doc docx ppt pptx xls xlsx).any?{|word| @file.downcase.end_with?(word)}
       end
 
       def conver(saved_file, force=false)
@@ -15,14 +17,18 @@ module Trustie
           if File.exist? @file
             if office?
               begin
-                resource = RestClient::Resource.new(
-                 'http://192.168.80.107/Any2HtmlHandler.ashx',
-                  :timeout => -1,
-                  :open_timeout => -1
-                )
-                req = resource.post :txtDes => File.new(@file, 'rb')
-                File.open(saved_file, "wb+") do |f|
-                  f.write(req.body)
+                # resource = RestClient::Resource.new(
+                #  'http://192.168.80.107/Any2HtmlHandler.ashx',
+                #   :timeout => -1,
+                #   :open_timeout => -1
+                # )
+                # req = resource.post :txtDes => File.new(@file, 'rb')
+                req = RestClient.post 'http://192.168.80.107/Any2HtmlHandler.ashx',:txtDes => File.new(@file, 'rb')
+                File.delete(saved_file) if File.exist?(saved_file)
+                if req.body.length > 10 && !req.body.eql?('转换出错')
+                  File.open(saved_file, "wb+") do |f|
+                    f.write(req.body)
+                  end
                 end
                 return true
               rescue =>e