Question

Apologies if this has been previously asked, but I couldn’t find exactly what I am trying to do. I have a large PDF that consists of a batch of 100 2-page forms (each different form has a unique identifier). I would like to split this up so that pages 1-2 are in a new file, 3-4 in a new file, and so on. How would I edit the following code to allow for this? Currently it splits each individual page into a separate file.

from pyPdf import PdfFileWriter, PdfFileReader
inputpdf = PdfFileReader(file("abc.pdf", "rb"))

for i in range(inputpdf.numPages):
  output = PdfFileWriter()
  output.addPage(inputpdf.getPage(i))
  outputStream = file("abc-page%s.pdf" % i, "wb")
  output.write(outputStream)
  outputStream.close()

Answer 1

I think this is what you want. I haven’t verified it, YMMV, etc.

from pyPdf import PdfFileWriter, PdfFileReader
inputpdf = PdfFileReader(file("abc.pdf", "rb"))

for i in range(inputpdf.numPages // 2):
    output = PdfFileWriter()
    output.addPage(inputpdf.getPage(i * 2))
    if i * 2 + 1 <  inputpdf.numPages:
        output.addPage(inputpdf.getPage(i * 2 + 1))
    outputStream = file("abc-page%s.pdf" % i, "wb")
    output.write(outputStream)
    outputStream.close()