cffi >= 1.9.1
defusedxml >= 0.5.0
img2pdf >= 0.2.4
Pillow >= 4.0.0, != 5.1.0 ; sys_platform == "darwin"
PyPDF2 >= 1.26
reportlab >= 3.3.0
ruffus == 2.6.3

[fitz]
PyMuPDF >= 1.12.5
