title: ghostscript - remove only specific text in PDF file
body: <p>Ghostscript allows to generate a new PDF without text from a source one with this easy script:</p>
  
  <pre><code>gs -o output_no_text.pdf -sDEVICE=pdfwrite -dFILTERTEXT  input.pdf
  </code></pre>
  
  <p>My purpose is delete just one specific fixed string into the first PDF not all the text. Is there a parameter to set in order to do so?</p>