HTMLDOC Problem:

Htmldoc produced no pdf-output.
Commandline:
/usr/bin/htmldoc --top 1.2cm --bottom 2.0cm --left 2.5cm --right 2.5cm --bodyfont Arial --logoimage fileadmin/images/template/ip_logo_pdf.jpg -t pdf13  --webpage -f /var/www/clients/client1/web2/web/typo3temp/hd_1oN6Wt - 2>/var/www/clients/client1/web2/web/typo3temp/se_NJ79AS

This is the (stderr) output of the htmldoc command without the htmldoc_append parameters:
If you see no errors here please check your htmldoc_append parameters too.
sh: /usr/bin/htmldoc: No such file or directory