diff --git a/printable.rb b/printable.rb
index 705544b..521fcaa 100644
--- a/printable.rb
+++ b/printable.rb
@@ -11,9 +11,11 @@ user="www-data"
 file=ARGV[0] # dokuwiki pagenme as argument
 
 # parse dokuwiki -> html
-
 `php /var/www/libarynth/dokuwiki/bin/dokucli.php < #{doku}/#{file}.txt > /tmp/#{file}.html`
 
 # convert html -> pdf with pandoc
-
 `pandoc /tmp/#{file}.html -S --template=#{repo}/pandoc/templates/fieldguide.tex --include-in-header=#{repo}/pandoc/header.tex --latex-engine=xelatex -o #{repo}/print/#{file}.pdf`
+
+# merge single pdfs
+`pdfjoin #{repo}/print/*.pdf --outfile #{repo}/fieldguide.pdf`
+