title: PoDoFo: Get ID of stream
body: <p>Does anyone know how to get "ID" of stream in XObject? I need get ID as string how it is shown in the picture below - <strong>/Im0</strong></p>
  
  <p><a href="https://i.stack.imgur.com/X4Wk7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/X4Wk7.png" alt="enter image description here"></a></p>
  
  <p>In my C++ code I have exactly the XObject as PoDoFo::PdfReference but do not know how to get this ID.</p>