Earlier this week there were a few Google Docs users that noticed added support for PDF files, and today Google has confirmed it. This has been a standing request from Google users for some time, especially as other document-sharing tools like Scribd and Docstoc have ensured that nearly all file types can be uploaded and viewed across computers and browsers.
With Google Docs support for PDF files, you can upload, preview and share PDFs. You can't yet edit them, but there is the ability to copy and paste text in another document file type or application. The preview capability is pretty similar to what you'd see on Google Books preview, and operates nearly the same as your typical PDF preview viewer. Users with whom you've shared the PDF document have the option of downloading the file as well.