Cut PDF pages in two halfs + rotated (ready for ereaders!)

_pdf_cut_half.py

import os, glob, pdfrw  # todo: pip install pdfrw
for f in glob.glob('*.pdf'):
    if '_cut.pdf' in f:
        continue
    writer = pdfrw.PdfWriter()
    for page in pdfrw.PdfReader(f).pages:
        for y in [0, 0.5]:
            newpage = pdfrw.PageMerge()
            newpage.add(page, viewrect=(0, y, 1, 0.5))
            p = newpage.render()
            p.Rotate = 270
            writer.addpages([p])
    writer.write(f[:-4] + '_cut.pdf')