With the updates of iOS versions, there are some new hidden features that you can use, such as the newly upgraded Siri, new Emojis, text-to-speech, and a lot more. Also, you can scroll down to learn more.ģ Apps to Help You Read PDF Aloud on iPhone You can take the advantage of the table below for a quick look at some of the features and comparison among them. In this post, we will introduce 3 excellent tools that can help. In this case, you may use applications to read PDF out loud on iPhone. Aside from that, the elderly may have some problems reading eBooks, PDF and even web pages with their iPhone because of its small screen. Reading PDF files on your iPhone can strain your eyes, especially on the bus or taxi, because of the small text and bright light on your device.