How to detect a rotated page in a PDF document in Python?

问题

Given a PDF document with multiple pages, how to check if a given page is rotated (-90, 90 or 180º)? Preferable using Python (pdfminer, pyPDF) ...

UPDATE: The pages are scanned, and most of the page is composed by text.

回答1:

I used simply /Rotate attribute of the page in PyPDF2:

 pdf = PyPDF2.PdfFileReader(open('example.pdf', 'rb'))
 orientation = pdf.getPage(pagenumber).get('/Rotate')

it can be 0, 90, 180, 270 or None

来源：https://stackoverflow.com/questions/34515674/how-to-detect-a-rotated-page-in-a-pdf-document-in-python