The Kindle e-reader from Amazon allows you to not only read content saved in the proprietary e-book format from Amazon, but also lets you open documents saved in the PDF format from Adobe. PDF ...

iOS 13 and iPadOS 13 add long-awaited support for external drive access in the Files application. This means you can access files on a USB drive, SD card, or hard drive directly from your iPhone. One ...

Kindle devices appeal to many people. When everything works, they're great. But Amazon is becoming more and more finicky, both in terms of supported formats and the freedom to manage your own books.