The Kindle Fire and second-generation Kindle Reader include native support for PDF files, but to view these files on a first-generation Kindle Reader, you must convert them to MOBI or AZW format.

As an avid reader, I often turn to my Kindle Paperwhite for leisure reading. Besides Kindle eBooks, I enjoy free books and other documents available in PDF format. However, I've discovered that to ...

It’s almost hard to remember, but when it came out, iBooks could read only EPUB files, not PDFs, and the only way to load them was by syncing with iTunes. Over a number of releases of both iBooks and ...