What issues in particular did you have with PDFs on the Kindle? If it was the low resolution for images and such, the Paperwhite and Voyage have higher DPI disp

What issues in particular did you have with PDFs on the Kindle? If it was the low resolution for images and such, the Paperwhite and Voyage have higher DPI displays (212 and 300, respectively, versus the original Kindle's 167). I've had some issues with PDF rendering on my Paperwhite also, but I've usually been able to convert them into a more readable form with Calibre.