diff --git a/src/pretix/control/templates/pretixcontrol/pdf/index.html b/src/pretix/control/templates/pretixcontrol/pdf/index.html
index 117382c44..3849b6573 100644
--- a/src/pretix/control/templates/pretixcontrol/pdf/index.html
+++ b/src/pretix/control/templates/pretixcontrol/pdf/index.html
@@ -417,7 +417,8 @@
                         <span class="fa fa-image"></span>
                         {% trans "pretix Logo" %}
                     </button>
-                    <button class="btn btn-default btn-block" id="editor-add-image" disabled>
+                    <button class="btn btn-default btn-block" id="editor-add-image" disabled
+                        data-toggle="tooltip" title="{% trans "You can use this to add user-uploaded pictures from questions or pictures generated by plugins. If you want to embed a logo or other images, use a custom background instead." %}">
                         <span class="fa fa-image"></span>
                         {% trans "Dynamic image" %}
                     </button>