diff --git a/paper/header.tex b/paper/header.tex
index 604ae8d..121bd93 100644
--- a/paper/header.tex
+++ b/paper/header.tex
@@ -17,3 +17,5 @@
 pdfkeywords = {Julia, Optimization, Game theory, Compiler},
 }
 
+\usepackage{draftwatermark}
+
diff --git a/paper/journal_dat.tex b/paper/journal_dat.tex
index 47d823d..a925030 100644
--- a/paper/journal_dat.tex
+++ b/paper/journal_dat.tex
@@ -3,4 +3,4 @@
 \def\@journalName{Proceedings of JuliaCon}
 \def\@volume{1}
 \def\@issue{1}
-\def\@year{2019}
+\def\@year{2021}
diff --git a/paper/paper.tex b/paper/paper.tex
index 1a905c5..fa61e81 100644
--- a/paper/paper.tex
+++ b/paper/paper.tex
@@ -3,10 +3,10 @@
 \documentclass{juliacon}
 \setcounter{page}{1}
 
-\begin{document}
-
 \input{header}
 
+\begin{document}
+
 \maketitle
 
 \begin{abstract}
diff --git a/paper/prep.rb b/paper/prep.rb
index 6da32f4..4cbff2c 100644
--- a/paper/prep.rb
+++ b/paper/prep.rb
@@ -13,6 +13,7 @@
 issue = ENV["JLCON_ISSUE"] === nil ? 1 : ENV["JLCON_ISSUE"]
 volume = ENV["JLCON_VOLUME"] === nil ? 1 : ENV["JLCON_VOLUME"]
 year = ENV["JLCON_YEAR"] === nil ? 2021 : ENV["JLCON_YEAR"]
+draft = ENV["JLCON_DRAFT"] === nil ? true : ENV["JLCON_DRAFT"] == "true"
 journal_name = "Proceedings of JuliaCon" # hard-coded for now
 
 open('header.tex', 'w') do |f|
@@ -40,6 +41,11 @@
 	keyword_list = metadata['keywords'].join(', ')
 	f << "pdfkeywords = {#{keyword_list}},\n"
 	f << "}\n\n"
+
+	# draft mode
+	if draft
+	  f << "\\usepackage{draftwatermark}\n\n"
+	end
 end
 
 open('journal_dat.tex', 'w') do |f|