$ brew install imagemagick
$ brew install tesseract
$ pip install pyobjc-core
$ pip install pyobjc
$ pip install pymouse

$ ./grab.py -h
usage: grab.py [-h] -t TITLE -f [{pdf,txt} [{pdf,txt} ...]] [-n NUMBER_PAGES]
               [-c CMP_AFTER]

optional arguments:
  -h, --help            show this help message and exit
  -t TITLE, --title TITLE
                        book title
  -f [{pdf,txt} [{pdf,txt} ...]], --formats [{pdf,txt} [{pdf,txt} ...]]
                        need formats of output file
  -n NUMBER_PAGES, --number-pages NUMBER_PAGES
                        number pages for grab (default 1000)
  -c CMP_AFTER, --cmp-after CMP_AFTER
                        number of pages, after which the last two pages will
                        be compared and if they equal - stop