HTMLDOC Problem: Htmldoc produced no pdf-output.
Commandline:
/var/www/typo3_4.x/re-link/typo3conf/ext/htmldoc_linux/bin/htmldoc --bodyfont ARIAL -t pdf13 --bodyimage /var/www/typo3_4.x/re-link/fileadmin/pdf_bg.jpg  --webpage -f /var/www/vhosts/re-link/typo3temp/hd_FNXJj8 - 2>/var/www/vhosts/re-link/typo3temp/se_sviXMl

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: /var/www/typo3_4.x/re-link/typo3conf/ext/htmldoc_linux/bin/htmldoc: No such file or directory