title: How to check that all used fonts are embedded in PDF with Java iText?
body: <p>How to check that all fonts that are used in a PDF file are embedded in the file with Java and iText? I have some existing PDF documents, and I'd like to validate that they use <em>only</em> embedded fonts.</p>
  
  <p>This would require checking that no PDF standard fonts are used and other used fonts are embedded in the file.</p>