The goal of this

The following script will download a website recursively into a collection of html files, convert them into PDFs and then concatenates them into a single PDF.

Prerequisites

You'll need pdftk, wget and wkhtmltopdf. Make sure that you have a wkhtmltopdf version that terminates properly, for example version 0.9.9.

If you're on OSX, you can install all of these tools via homebrew. The formula for pdftk can be found here.

The script

#!/bin/bash

echo "Collecting files from subfolders..."
for FILENAME in $(find . -type f -name '*\.html' -print | sed 's/^\.\///')
do
    mv $FILENAME `basename $FILENAME`
done

echo "Converting into PDF files..."
find . -name \*.html | sed 's/.html$//g' | xargs -n 1 -I X wkhtmltopdf --quiet X.html X.pdf

echo "Concatenating the PDF files..."
pdftk *.pdf cat output book.pdf