Some might suggest you download an app to convert a picture to a PDF on the iPhone, but the truth is you can do it for free without any apps.

It's easy to convert images into PDF files -- whether on Windows, Mac, or directly on your mobile phone. We'll show you how it works.

In such cases, you might want to convert that physical book into a PDF or eBook that you can then read on the eBook apps on your iPhone or Android. There are several ways of doing so.

In iOS and iPadOS, Apple includes a built-in screenshot feature that also provides you with the ability to capture an entire webpage on your iPhone ...