title: Where I can find pdfkit or wkhtmltopdf logs?
body: <p>I'm trying to debug issue with error on pdf generation in Ruby on Rails app. I'm using the pdfkit + wkhtmltopdf-binnary gems. Because of some issue I'm receiving the 500 and this info in logs:</p>
  
  <p><code>RuntimeError (command failed (exitstatus=1): /home/ubuntu/phys-track/shared/bundle/ruby/2.0.0/bin/wkhtmltopdf --quiet --page-size Letter --margin-top 0.75in --margin-right 0.75in --margin-bottom 0.75in --margin-left 0.75in --encoding UTF-8 - -):
  </code>
  I'm wondering where I can find any log where I can see any more verbose information about the issue.</p>