title: Getting size of pdf without downloading
body: <p>Is it possible to know the size of a pdf e.g. <a href="http://example.com/ABC.pdf" rel="nofollow">http://example.com/ABC.pdf</a> using requests module in python without actually downloading it.
  I am writing an application where if the internet speed is slow and if the size of the pdf is large then it will postpone the download for the future</p>