title: How to install pdftk on Mac OS X
body: <p>I want to install pdftk with MacPorts, but this command does not work:</p>
  
  <pre><code> sudo apt-get install pdftk
  </code></pre>
  
  <p>Is it possible to install it on a Mac?</p>
  
  <p>My system specifications are:</p>
  
  <pre><code>Processor: 2.5 GHz Intel Core i5
  Memory:    8 GB 1600 MHz DDR3
  Graphics:  Intel HD Graphics 4000 768 MB
  </code></pre>