diff --git a/app/controllers/archives_controller.rb b/app/controllers/archives_controller.rb
index 57492c1..b1a4e59 100644
--- a/app/controllers/archives_controller.rb
+++ b/app/controllers/archives_controller.rb
@@ -195,7 +195,7 @@ class ArchivesController < ApplicationController
                 @path = file.file.file.file rescue ""
                 @filename = @path.split("/").last
                 @ext = @path.split("/").last.to_s.split(".").last
-                if @ext == "png" || @ext == "jpg" || @ext == "bmp"
+                if @ext == "png" || @ext == "jpg" || @ext == "bmp" || @ext == "pdf"
                     render "download_file",:layout=>false
                 else
                     send_file(@path)
diff --git a/app/views/archives/download_file.html.erb b/app/views/archives/download_file.html.erb
index 1bbee7f..0232f77 100644
--- a/app/views/archives/download_file.html.erb
+++ b/app/views/archives/download_file.html.erb
@@ -1,4 +1,4 @@
-<html lang="<%= I18n.locale.to_s%>">
+<html lang="<%= I18n.locale.to_s%>" style="margin: 0em; padding: 0em; width: 100%; height: 100%; overflow: hidden; background-color: rgb(230, 230, 230);">
 <head>
     <meta name="viewport" content="width=device-width, minimum-scale=0.1">
     <title><%=@filename%></title>
@@ -6,6 +6,13 @@
 </head>
 <body>
     <h3 style="display: none;"><%=@filename%></h3>
-    <img alt="<%=@filename%>" src="<%=@url%>">
+    <% if @ext != "png" && @ext != "jpg" && @ext != "bmp" %>
+        <object data="<%=@url%>" height="100%" type="application/<%=@ext%>" width="100%">
+            <iframe height="100%" src="<%=@url%>" title="<%=@filename%>" width="100%"></iframe>
+        </object>
+        <embed height="100%" src="<%=@url%>" title="<%=@filename%>" width="100%" type="application/pdf"></embed>
+    <% else %>
+        <img alt="<%=@filename%>" src="<%=@url%>">
+    <% end %>
 </body>
-</html>>
\ No newline at end of file
+</html>
\ No newline at end of file
