gistfile1.scala

  def downloadPDF(url: String): Result[(File, String)] = {
    loadPage(url) andThen
    waitForSelector("div.textLayer") andThen 
    runJS("return extractPdfContent()") andThen {
      Thread.sleep(2000) // give browser a chance
      val extracted = runJS("return intBuf2hex(extractedPdf)") map (_.toString)
      val pdf = extracted flatMap 
        (_.decodeHex #> File.createTempFile("download", ".pdf"))
      
      val html = runJS("return _$('div.textLayer').innerHTML") map (_.toString)
      pdf <*> html
    }
  }