title: Adding bottom border on pdf form fields
body: <p>I have to insert a bottom border on some fields in my pdf editable form.</p>
  
  <p>I would like to insert a row without to do it manually for each field:</p>
  
  <p><img src="https://i.stack.imgur.com/5mF8j.jpg" alt="screenshot"></p>
  
  <p>I don't know which solution can help me to do this (a program like acrobat or foxit, an external library as itext sharp or abcpdf)</p>
  
  <p>Have anyone some idea?</p>
  
  <p>Thanks in advance</p>