diff --git a/docs/topics/http/_images/middleware.pdf b/docs/topics/http/_images/middleware.pdf
new file mode 100644
index 0000000000..8a9e61ef40
Binary files /dev/null and b/docs/topics/http/_images/middleware.pdf differ
diff --git a/docs/topics/http/middleware.txt b/docs/topics/http/middleware.txt
index 0c6858e2cf..52f0e8582d 100644
--- a/docs/topics/http/middleware.txt
+++ b/docs/topics/http/middleware.txt
@@ -63,7 +63,7 @@ reverse order, from the bottom up. Three hooks are available:
 * :meth:`process_template_response` (only for template responses)
 * :meth:`process_response`
 
-.. image:: _images/middleware.svg
+.. image:: _images/middleware.*
    :alt: middleware application order
    :width: 480
    :height: 408