class Kramdown::Converter::Pdf

def convert(el, opts = {})

element is of type :header and the :auto_ids option is set.
A PDF destination is also added at the current location if th element has an ID or if the

Invoke the special rendering method for the given element +el+. 
def convert(el, opts = {})
  id = el.attr['id']
  id = generate_id(el.options[:raw_text]) if !id && @options[:auto_ids] && el.type == :header
  if !id.to_s.empty? && !@dests.has_key?(id)
    @pdf.add_dest(id, @pdf.dest_xyz(0, @pdf.y))
    @dests[id] = @pdf.dest_xyz(0, @pdf.y)
  end
  send(DISPATCHER_RENDER[el.type], el, opts)
end