Photoshop :: Convert Single PDF To Multiple Jpegs?

We produce a number of A5 publications and the need has arisen for me to produce each page of each publication as a jpeg (can't be anything else) for web publication.

As I see it my current options are:

1. During the PDF'ing process from InDesign we produce an individual PDF per page (usually 40 pages per publication and 4 publications) and then batch convert them in PS.

2. We create jpegs from a 40 page PDF, one at a time.

Both are rediculously tedious and time consuming, and we would have to pass this cost onto the customer which I am loathe to do.

I am therefore wandering whether there is a way in PS to set up a batch process where it will open the pdf 40 times, incrementing by 1 page each time and saving that page as a jpeg.

Alternatively, there may be away that I can produce 40 individual PDF's in one process using Acrobat Pro/InDesign, and then do the batch process in PS.

Both my printer and his own designers and myself have drawn a blank really,