You can download a file easily by doing this:
(in python 3 I think it's urllib2)
you can make this into a for loop to download a bunch of images and then name them accordingly
To make them a PDF I would just find some jpg to pdf utility, probably easier
Code
import urllib
urllib.urlretrieve ("http://www.example.com/songs/mp3.mp3", "mp3.mp3")you can make this into a for loop to download a bunch of images and then name them accordingly
Code
for x in range(100):
urllib.urlretrieve ("http://www.example.com/page"+str(x)+".jpg", str(x)+".jpg")