title: Laravel Cashier producing corrupt pdf invoice on Fortrabiit
body: <p>I'm using Laravel Cashier and can produce and download invoices fine in my local environment. The invoices are around 138KB. However, when I try to download the invoice in my Fortrabbit production environment the pdf produced is only 2KB and I cannot open it.</p>
  
  <p>The error I get in Chrome is "Failed to load PDF document" and when I try to open it with OSX Preview the error is:</p>
  
  <p>"The file “Subscription_8_2015 (1).pdf” could not be opened.
  It may be damaged or use a file format that Preview doesn’t recognize"</p>
  
  <p>Now, obviously this has something to do with server settings or missing package. Rather than me trawling for hours through these settings does anyone know off the top of their head what could be culprit?</p>
  
  <p>Thanks in advance.</p>