Competition from other PDF conversion software has caused the Adobe juggernaut to offer it's own conversion service.
Now you can convert up to 5 existing Microsoft Word, Excel, PowerPoint, Open Office, Star Office, Word Perfect, and image files (BMP, GIF, JPEG, TIFF, PNG) to PDF. The advantage is that you know the file will be totally Adobe compatible.
You need to have Internet Explorer 6 or above, or Firefox 2.x and above, or Safari 3.x and above. To it's advantage, it is an easy to use web interface.
For self-publishers, it's a great way to get that finished (typeset and designed) file 'printer ready'.
Click picture to view larger image. Adobe - Online PDF converter from Acrobat.com
