title: Check if Adobe Acrobat Reader is open and get the filename of the pdf
body: <p>I am searching a way to check with C#, if there is an open Adobe Acrobat Reader and when it is, get the filename with the path of the open PDF.</p>
  
  <p>Can someone give me a tipp?</p>
  
  <p>Thank you.</p>
  
  <p>Best Regards, Thomas</p>