Page Exporter Utility (PEU) 5 Script Updated for CS3
A number of people swear by the free Page Exporter Utility for exporting InDesign documents as individual PDF, JPEG, EPS, or Postscript pages (or outputting multiple PDF files as a batch process). The bad news is that it hasn't always been easy to find a copy of it on the Web. The good news is that the script's author, Scott Zanelli, has consented for us to post the newest version (5) here, which is supposed to work with both CS2 and CS3. (I've only tested it with CS3.)
You can download Page Exporter Utility here:
The Page Exporter Utility offers a number of options for exporting your files. For example, you can export each spread as an individual PDF file, specifying custom naming and so on:
There is also a "versioning" option that lets you create a number of different PDFs from different layer combinations. For example, lets say you have one base layer and three language layers. You would want three different PDF files: english+base, french+base, and so on.
PEU is clever, it's relatively fast, and it has a darn good price (free). If you're a scripter, you can even customize the script (Scott has released it under the GNU General Public License).