title: How to send image using application/octet-stream in OCR Cognitive
body: <p>Hello I'm trying to use OCR API From Microsoft and It expect Content-type application/octet-stream and body post a binary.
  I tried send image as Base64(binary), just binary, however It didn't work.
  Someone knows how this image needs be sended?</p>
  
  <p><a href="https://westus.dev.cognitive.microsoft.com/docs/services/56f91f2d778daf23d8ec6739/operations/56f91f2e778daf14a499e1fc" rel="nofollow noreferrer">Link to documentation</a></p>