--- a/cws/upload	Thu Aug 04 16:53:38 2022 +0200
+++ b/cws/upload	Sat Oct 08 00:30:51 2022 +0100
@@ -13,3 +13,5 @@
 
 #hg commit -m "updated jars"
 
+# prevent PDF from being copied
+###gs -o output.pdf -dNoOutputFonts -sDEVICE=pdfwrite main_cw01.pdf