title: How do you combine PDFs in ruby?
body: <p>This was <a href="https://stackoverflow.com/questions/85459/is-it-possible-to-combine-a-series-of-pdfs-into-one-using-ruby">asked in 2008</a>. Hopefully there's a better answer now.</p>
  
  <p>How can you combine PDFs in ruby?</p>
  
  <p>I'm using the <a href="http://github.com/spatialnetworks/pdf-stamper" rel="nofollow noreferrer">pdf-stamper gem</a> to fill out a form in a PDF. I'd like to take <em>n</em> PDFs, fill out a form in each of them, and save the result as an <em>n</em>-page document.</p>
  
  <p>Can you do this with a native library like prawn? Can you do this with rjb and iText? pdf-stamper is a wrapper on iText.</p>
  
  <p>I'd like to avoid using two libraries (i.e. pdftk and iText), if possible.</p>