Your iPhone and iPadOS come with a built-in Markup feature that can be used across the operating system of Apple, according to HowtoGeek. You will find it as soon as you open a PDF in the Mail app ...

So how can you edit your PDF files on your iPhone and iPad in the iOS 15 Files app? First, you will need to run the iOS 15, open the Files app, and open the PDF that you want to edit.

In iOS, Apple's stock Files app is a handy place for keeping PDF documents on your iPhone or iPad. Not only can you view and organize your documents in the Files app, but it also provides you with ...

Using your iPhone as an e-reader allows you to keep up with publications in your field or pass the time during a business trip without additional hardware. You can also open PDF files of contracts ...

You can save any PDF onto an iPad, and read them in apps like Apple Books and Google Drive. Here's how to save PDFs on an iPad, with specific steps.