--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/README	Mon Sep 15 11:44:09 2025 +0200
@@ -0,0 +1,21 @@
+This directory holds third party libraries.
+
+If you got MuPDF from a source release tarball, these libraries have been
+stripped down for size and do not include test files and other auxiliary data.
+If you want the full versions you should clone from git!
+
+If you got MuPDF from a git checkout, these are git submodules.
+
+To set up the third party modules for building from git:
+
+	$ git submodule init
+	$ git submodule update
+
+Then after each pull (to make sure they're up to date):
+
+	$ git submodule update
+
+If the directories are empty or missing, the makefile based build will try to
+use system libraries instead.
+
+Do NOT edit files in the submodule checkouts unless you know what you're doing.