title: How send a PDF by POST HttpWebRequest in C#
body: <p>(i'm french, sorry for my english)<br>
  I don't find / understand how send a simple PDF file by post request at a webService (REST protocol).<br>
  I tried some examples but it's doesn't word. And when i use a , it's work, but i want do this in the code behind only !<br>
  My question is the title : How send this PDF file?<br>
  The url : <a href="https://test.website.fr/Website/api/transactions/" rel="nofollow">https://test.website.fr/Website/api/transactions/</a>" + sVal + "/contrat<br>
  PDF file : questions.pdf</p>
  
  <p>Thanks.
  Iris Touchard</p>