title: Cannot get trial license to load for itext 7
body: <p>I am trying to explore the pdfsweep functionality of itext 7.  I have obtained a 30 day trial license.  When I call <code>LicenseKey.loadLicenseFile(path-to-key-file)</code>, it returns without any errors, but when I attempt to instantiate a <code>PdfCleanUpTool</code>, I get the following error:</p>
  
  <pre><code>LicenseKeyException License file not loaded.  com.itextpdf.licensekey.LicenseKey.checkLicense (LicenseKey.java:410)
  </code></pre>
  
  <p>Thanks.</p>