title: pdftk compression option
body: <p>I use <strong>pdftk</strong> to compress a pdf using the following command line</p>
  
  <pre><code>pdftk file1.pdf output file2.pdf compress
  </code></pre>
  
  <p>It works as the weight of my file decreased. </p>
  
  <p>Are there [options] to change the compression???</p>
  
  <p>Or maybe other solutions to compress my file? It is heavy because some graphics have <strong>a lot of points</strong>. Is there a way to convert these graphs to jpg for instance and adapt the compression?</p>