diff --git a/home/local/bin/merge-pdf b/home/local/bin/merge-pdf
new file mode 100755
index 0000000..c5b4e62
--- /dev/null
+++ b/home/local/bin/merge-pdf
@@ -0,0 +1,8 @@
+#! /usr/bin/env nix-shell
+#! nix-shell -i bash -p ghostscript
+#
+# Local Variables:
+# mode: sh
+# End:
+
+gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=- -dBATCH "$@"