title: decrypting pdf protected by aes-256bit using the right password
body: <p>Is there any way to decrypting a pdf protected by an aes-256 bit key?</p>
  
  <p>I have the correct password and I need a command-line tool (or library - perhaps in python :P ) for decrypting the file and then doing some operation over it.</p>
  
  <p>The best thing could be if the file could be saved decrypted, then I elaborate it and then I can remove it...</p>
  
  <p>Does anyone know something about it?</p>