diff --git a/src/window.ui b/src/window.ui
index 106b053..919fcf6 100644
--- a/src/window.ui
+++ b/src/window.ui
@@ -1,10 +1,10 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<!-- Created with Cambalache 0.94.1 -->
+<!-- Created with Cambalache 0.99.3 -->
 <interface>
   <!-- interface-name window.ui -->
   <requires lib="Adw" version="1.0"/>
-  <requires lib="gtk" version="4.0"/>
   <requires lib="gio" version="2.0"/>
+  <requires lib="gtk" version="4.0"/>
   <requires lib="libadwaita" version="1.4"/>
   <template class="AllesappWindow" parent="AdwApplicationWindow">
     <property name="content">
@@ -39,15 +39,26 @@
                         <child>
                           <object class="GtkLabel" id="my_ip_address_label">
                             <property name="label">Meowwww</property>
+                            <property name="margin-bottom">5</property>
+                            <property name="margin-top">5</property>
                           </object>
                         </child>
                         <child>
                           <object class="GtkButton" id="fetch_my_ip_address">
                             <property name="icon-name">processes-symbolic</property>
                             <property name="label">Fetch my IP address</property>
+                            <property name="margin-bottom">5</property>
+                            <property name="margin-start">0</property>
+                            <property name="margin-top">5</property>
                             <signal name="clicked" handler="on_fetch_my_ip_address"/>
                           </object>
                         </child>
+                        <child>
+                          <object class="GtkDrawingArea" id="pdf_display">
+                            <property name="content-height">100</property>
+                            <property name="content-width">100</property>
+                          </object>
+                        </child>
                       </object>
                     </property>
                   </object>
diff --git a/src/window.vala b/src/window.vala
index 780306d..453d8d3 100644
--- a/src/window.vala
+++ b/src/window.vala
@@ -29,13 +29,29 @@ public class Allesapp.Window : Adw.ApplicationWindow {
     [GtkChild]
     private unowned Adw.Banner network_offline;
 
+    [GtkChild]
+    private unowned Gtk.DrawingArea pdf_display;
+
     public Window (Gtk.Application app) {
         Object (application: app);
     }
 
+    public void draw_pdf (Gtk.DrawingArea drawing_area, Cairo.Context cr, int width, int height) {
+        cr.arc(
+            width / 2,
+            height / 2,
+            height / 2,
+            0,
+            2
+       );
+       cr.fill();
+    }
+
     construct {
         app.toast.connect (add_toast);
         app.network_online_changed.connect (on_network_online_changed);
+
+        pdf_display.set_draw_func (draw_pdf);
     }
 
     [GtkCallback]