title: How to Highlight Text in PDF with commandline (windows)?
body: <p>I'm looking for a way to highlight words (e.g."<em>some words [0-9]</em>") or better the whole line with the given words in it, in some onesided PDFs.
  It will be part of a Batch-process on Windows, so i need a command line way to do this. I've looked at Ghostscript, but can not see how it is to be used.</p>
  
  <p>hope i didnt made something wrong - i looked into other questions, mainly <a href="https://stackoverflow.com/questions/4427034/add-comments-to-pdf-files-automagically-with-regular-expressions">Add comments to PDF files automagically with regular expressions</a> but this helped me not really, also english is not my native language - as you maybe have noticed already.</p>
  
  <p>Thanks in advance</p>