Crops a PDF printout with multiple pages and aggregates into a single page.

pageCropper.py

import copy
from pyPdf import PdfFileWriter, PdfFileReader

input1 = PdfFileReader(file("in.pdf", "rb"))
output = PdfFileWriter()

numPages = input1.getNumPages()
for i in range(numPages):
    masterPage = input1.getPage(i)
    aggPageCollection = []
    for j in range(0, 3):
        pageCollection = []
        for q in range(0, 3):
            page = copy.copy(masterPage)
            xCoordsDerived = (30 + 250 * j, 28 + 192 * q)
            yCoordsDerived = (258 + 255 * j, 200 + 192 * q)

            page.cropBox.lowerLeft = xCoordsDerived
            page.cropBox.upperRight = yCoordsDerived
            pageCollection.append(page)

        aggPageCollection.append(pageCollection)

    for pageList in aggPageCollection:
        output.addPage(pageList[2])
    for pageList in aggPageCollection:
        output.addPage(pageList[1])
    for pageList in aggPageCollection:
        output.addPage(pageList[0])

outputStream = file("out.pdf", "wb")
output.write(outputStream)
outputStream.close()