wkhtmltopdf v0.12.4 need the lowquality flag
wkhtmltopdf v0.12.4 need the lowquality flag

* add required `—lowquality` flag on wkhtmltopdf `v0.12.4`
  * https://github.com/wkhtmltopdf/wkhtmltopdf/issues/3241#issuecomment-395019818

arturoherrero/biteydown