title: How to convert a Blob object into a PDF file in Java?
body: <p>I have the following situation into a Java application.</p>
  
  <p>From the database a retrieve this <strong>Blob</strong> object that is the representation of a PDF file on the DB:</p>
  
  <pre><code>Blob blobPdf = cedolinoPdf.getAllegatoBlob();
  </code></pre>
  
  <p>Now I have to convert it into a PDF file. How can I do this task?</p>
  
  <p>Tnx</p>