title: Is there an easy way to create thumbnails of various document formats like Word, Excel on iOS?
body: <p>Is there a built-in mechanism in the iOS SDK that I could use to render <strong>thumbnails</strong> (UIImage) of arbitrary document types, like <strong>Word, Excel, PDF, image formats</strong>, etc - whatever iOS is capable of previewing?
  It only ever needs to create a thumbnail of the first page.</p>
  
  <p>I have code to scale down PDFs and images but I thought, as iOS can preview Word and others, maybe there is something built in?</p>