Join a bunch of pdfs (like chapters of a book) into one pdf.

pdf-joiner.py

from pyPdf import PdfFileReader, PdfFileWriter
import sys, os

if len(sys.argv)>1:
    output_name = sys.argv[1]
else:
    output_name = "all.pdf"
    
pdfs = filter(lambda f: os.path.splitext(f)[1]=='.pdf', os.walk(".").next()[2])
pdfs.sort()
print pdfs

# join them all together
output = PdfFileWriter()

for fname in pdfs:
    pdf = PdfFileReader(file(fname, "rb"))
    for page in range(pdf.getNumPages()):
        output.addPage(pdf.getPage(page))
        
output.write(file(output_name, "wb"))