Instructions to batch download a Hachette book from Educadhoc

instructions.md

1. Find the book IBAN

In my case, it is 9782017092605

2. Go to the Educadhoc demo for this IBAN

(replace with the book IBAN) https://demo.educadhoc.fr/reader/textbook//fxl/Page_1?feature=freemium

3. Execute these commands

  curl "https://exobank.hachette-livre.fr/contents/final/<IBAN>-fxl/OEBPS/Page_[1-<NB_PAGES>].html?interface=postMessage" -o "page_#1.html"   
  curl "https://exobank.hachette-livre.fr/contents/final/<IBAN>-fxl/OEBPS/images/img-[1-<NB_PAGES>]-1.jpg" -o "images/img-#1-1.jpg"  
  curl "https://exobank.hachette-livre.fr/contents/final/<IBAN>-fxl/OEBPS/fonts/font-[0-<NB_FONTS>].otf" -o "fonts/font-#1.otf"  

Execute this script to turn the pages into PDFs

for i in $(seq 1 <NB_PAGES>)
do
  sudo wkhtmltopdf --disable-javascript --disable-external-links --enable-local-file-access --zoom 1.7 -L 0 -R 0  "page_$i.html" "pages/page_$i.pdf"
done

Fuse all the pages:

pdftk page_*.pdf cat output full_book.pdf

And compress the resulting file:

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/prepress -dNOPAUSE -dQUIET -dBATCH -sOutputFile=compressed_book.pdf full_book.pdf