title: PDF-Form Text hidden unless clicked
body: <p>In my application I have to fill a predefined PDF form with data from DB. We are using Java and Pdfbox. The filling itself is not a problem.</p>
  
  <p>The problem is that in resulting PDF-file all texts in the form are invisible (or hidden, also grey rectangles) unless field clicked.</p>
  
  <p>How can I solve this problem?</p>