split multi-page PDFs into multiple files (OS X)

gistfile1.txt

#!/usr/bin/python

"""
Splits an input pdf file into many files, one per page
"""

import sys
import os

from CoreGraphics import *

inputFN = sys.argv[1]
inputDoc = \
  CGPDFDocumentCreateWithProvider(\
  CGDataProviderCreateWithFilename(inputFN))

if inputDoc:
  maxPages = inputDoc.getNumberOfPages()
  print '%s has %d pages' % (inputFN, maxPages)
else:
  sys.exit(2)

baseFN = os.path.splitext(os.path.basename(inputFN))[0]
pageRect = CGRectMake (0, 0, 612, 792)

for pageNum in range(1,maxPages+1):
  outputFN = '%s-%d.pdf' % (baseFN, pageNum)
  writeContext = CGPDFContextCreateWithFilename(outputFN, pageRect)

  print 'Writing page %d' % (pageNum)

  mediaBox = inputDoc.getMediaBox(pageNum)
  writeContext.beginPage(mediaBox)
  writeContext.drawPDFDocument(mediaBox, inputDoc, pageNum)
  writeContext.endPage()

print 'Done: %d file(s) generated.' % maxPages