title: Unix: Combine PDF -files and images into PDF -file?
body: <p>My friend is asking this question, he is using Mac and cannot get PdfLatex working (having no dev CD, related <a href="https://apple.stackexchange.com/questions/64501/compiling-latex-in-apple-products-is-something-like-pdflatex-around">here</a>). Anyway my first idea: </p>
  
  <blockquote>
    <ul>
    <li>$ pdftk 1.pdf 2.pdf 3.pdf cat output 123.pdf <strong>[only pdfs]</strong></li>
    <li>$ convert 1.png 2.png myfile.pdf <strong>[only images]</strong></li>
    </ul>
  </blockquote>
  
  <p>Now I don't know without LaTex or iPad's Notes Plus how to combine images and PDF -files. So how can I combine pdf -files and images in Unix?</p>