Older versions of Photoshop (up to CS1) had this really nifty Multi-page pdf to psd function (in file->automate) which could convert easily pdf’s to images with couple of clicks. For some weird reason Adobe decided to remove it from newer versions. Twice a year I have to convert few hundred pages of pdfs to images, so it was kinda of draw back. But, thumbs up for those people who are willing to help us earthly worms!
There are couple of options available:
1) MultiPDFtoPSD.8LI – Install this to Plug-Ins/Automate-folder. Will appear in file->automate. I’m not quite sure in what version this is supposed work. It works fine in CS2, but seems to be a bit buggy in CS3. I’ve had this file for years now, can’t remember where I originally found it.
2) PDF Processor CS3 – Install this to Presets/Scripts-folder. Will appear in file->Scripts. It worked like a charm in CS3 like the file name promises. It can select Single page, All pages or Range of pages to extract. Each page is saved in the same location as the original document. It can resize using Fit Image and run an Action if required. I found this file here ps-scripts.com/bb/viewtopic.php?t=1882.

Start view of PDF Processor CS3