diff --git a/create-clean-texlive.sh b/create-clean-texlive.sh
new file mode 100755
index 0000000..bf0711f
--- /dev/null
+++ b/create-clean-texlive.sh
@@ -0,0 +1,21 @@
+#! /bin/sh
+v=20200406
+s=texlive-$v-source.tar.xz
+p=${s%.tar.xz}
+
+echo create the clean texlive source, please wait...
+# get the texlive original source
+if [ ! -f $s ] ; then
+  wget http://ftp.tu-chemnitz.de/pub/tug/historic/systems/texlive/2020/$s
+  if [ ! -f $s ] ; then
+    echo download $s failed!
+    exit 1
+  fi
+fi
+tar Jxf $s
+# remove files with bad licenses, don't embeded zziplib but build with system lib
+rm -f $p/libs/zziplib/zziplib-src/docs/zzipdoc/{options.py,match.py}
+
+# create clean texlive source
+tar Jcvf $p-clean.tar.xz $p
+echo clean texlive source $p-clean.tar.xz is created.