diff --git a/homemanager/default_apps.nix b/homemanager/default_apps.nix
index 08be8bf..529f5bc 100644
--- a/homemanager/default_apps.nix
+++ b/homemanager/default_apps.nix
@@ -14,11 +14,13 @@ in
   config = lib.mkIf config.modules.default_apps.enable {
     xdg.mimeApps.enable = true;
     xdg.mimeApps.defaultApplications = {
+      # Future Reference: use `xdg-mime query filetype <file>` to get the mime tyep of a given file
       "text/html" = "${defaultBrowser}.desktop";
       "x-scheme-handler/http" = "${defaultBrowser}.desktop";
       "x-scheme-handler/https" = "${defaultBrowser}.desktop";
       "x-scheme-handler/about" = "${defaultBrowser}.desktop";
       "inode/directory" = "org.gnome.Nautilus.desktop";
+      "application/pdf" = "${defaultBrowser}.desktop";
     };
 
     xdg.terminal-exec.enable = true;