A word of warning though, these may be the last versions I make available. With Cubicle 7 releasing the 11 Doctors Sourcebooks over the next year or so, they'll (hopefully) be publishing all the official stats from the TV series. And there are plans for some of us here to produce a series of Extracanonical Sourcebooks here on the forum, which will cover the spin-offs. So I'll probably remove the Aliens & Enemies and Heroes & Allies files later this year, as they'll become more or less redundant.
Oh, I hope you keep the files available for a long time to come - the information in them is likely to be different than the published material. And if the prices of the Timtraveller's Companion and UNIT Sourcebooks are any indication owning all 11 Doctors' sourcebooks will cost me between $700 - $900 ($2000 - $5000 once they go collectible).
Your PDFs are print friendly. So, I can download them, and print them off, and have "hard copies" of them at my fingertips.
Ah, just realized some files are still word documents. Can anyone recommend a good, cheap pdf generating program?
Unless there are any I'm forgetting, the most recent versions of the files which are available to download now are all pdfs - just follow the link in my last reply (three posts up from here) and ignore versions attached to earlier posts in this thread.
But as a more general answer, current versions of Microsoft Word allow you to convert Word documents to pdf files. Open the Word file, click on Save As (under the File tab), and you should have the option to change the format to pdf. I'm using Word 2010 and it has this functionality.