a goal here is to follow the wkhtmltopdf parameters where it makes sense, to ease people switching to/from wkhtmltopdf: http://madalgo.au.dk/~jakobt/wkhtmltoxdoc/wkhtmltopdf-0.9.9-doc.html Properties without the [Option] declarations aren't accessible directly, but are more convenient when the order is being constructed from code instead of commandline arguments.