title: PDF specifications for coders: Adobe or ISO?
body: <p>I want to code an application that can read and decode a pdf document; now where I'm supposed to get the specs for this fileformat ? The PDF format is standardized from the ISO group but it's not clear to me where is the most reliable source for getting this kind of informations.</p>
  
  <p>what is a good source to start with this file format ?</p>