title: Create fillable PDF form with exams2nops
body: <p>We think about distributing an open-book exam as a <strong>fillable PDF form</strong> via <code>exams2nops</code>. The idea is that students do not print the PDF and mark their answers with a pen, but rather fill in their answers electronically in their PDF (e.g. with Acrobat Reader), and send back that PDF to us (or upload it via Moodle). Then, the PDF is "scanned" / the answers are extracted from the PDF.</p>
  
  <p>Currently, the checkboxes for MC/SC answers are not clickable; also the textfields for free text answers could be fillable text input fields. The current PDF export does not do this.</p>
  
  <p>Has anybody done this already? If I'd like to implement this, where is a good starting point? Maybe nops.tex?</p>
  
  <p>(We are aware that exporting to an interactive quiz in Moodle is an alternative option).</p>