Ebook reading in Book reader devices
How to crop continus pdf books?
Inspired by this blog post article by Jadi
In there he use convert but I want to higher level program.
Khaterate Haj sayyah esfahani(خاطرات حاج سیاح اصفهانی) is our source.
convet pdf file to two coloumn
$ sudo apt install mutool
# or in newer debian install
$ sudo apt install mupdf-tools
$ mutool poster -x 2 haj_sayah.pdf output.pdf
Unfortunatley pages in output file wrong ordered
Why? Persian written from Right to Left side, pages in Persian books arranges in reverse order.
So cropping each pages and append them work for default Left to Right languages like English and Messing up the order of Persian book.
Here We need reorder pages in a manner to swap each even page with odd one.
Reverse order of page for Persian books
We swap even with odd pages.
$ sudo apt install pdftk
$ pdftk output.pdf shuffle even odd output haj_sayyah_.pdf
Final change
At last we need replace cover page from original book. here is the command.
$ pdftk A=haj_sayyah_.pdf B=haj_sayah.pdf cat B1 A3-end output out1.pdf
Here is the output file, Haj sayyah