[imgabe]

I haven't used my Kindle without an account, but I have put non-Kindle, non-Amazon books on it, including some PDFs.

In my experience, the Kindle is terrible for reading PDFs. The screen is small, and PDFs don't dynamically resize the way e-books do. You'd probably be better off with an iPad or other tablet with better PDF software and better ability to zoom and pan than the Kindle has.

[accountLost]

Thanks. I don't expect a great experience but I'd like to see if a eInk reader would be easier on my eyes since I am already 10 hours a day on LCD. The following video gave me the impression that pdf on Kindle Oasis was acceptable...

https://m.youtube.com/watch?v=f-CIESDs78g