title: PDFTK random order
body: <p>I'm using the unix <a href="https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/" rel="nofollow noreferrer">pdftk</a> package to merge multiple pdf documents together into a single file with the terminal.</p>
  <pre><code>pdftk *.pdf cat output merged.pdf
  </code></pre>
  <p>This merges the pdf files correctly but ordered on name. I'd like to 'shuffle' this and order the different pdf's random. the different files have to be randomly ordered. But the pages inside each file have to be ordered correctly.</p>
  <p>How can i achieve this?</p>