title: PDFBox set field value doesn't work
body: <p>I'm trying to set values in a pdf form that has enabled input fields but  nothing appears.
  In my pdf there is a check box that enables the input field, so first I check it then I set the value in the field which has been enabled, but when I save my pdf my value doesn't appear.
  This is my code:</p>
  
  <pre><code>PDTextField pdfField = (PDTextField) acroForm.getField("info_15a");
  pdfField.setValue("xxxxxx");
  </code></pre>
  
  <p>no errors, no exception.
  So, what can I do?
  Thanks,
  Barbara</p>