← Guides 30 September 2026 · Aloud

How to convert a PDF to an audiobook on iPhone

There are a few ways to have a PDF read to you on an iPhone. Which one works depends mostly on what kind of PDF you’ve got, so check that first.

Check what kind of PDF you have

Two quite different things both end in .pdf:

• Text PDFs come from a word processor, an ebook or a website, and the words are stored as real text. Press and hold on a word. If it selects, you’re fine.
• Scanned PDFs are photos of pages. They look the same, but nothing selects, and no text-to-speech tool can read them until the text has been recognised. What to do with a scanned PDF.

The rest of this guide assumes a text PDF.

Option 1: Speak Screen

This is built into every iPhone and costs nothing. Turn on Settings → Accessibility → Spoken Content → Speak Screen, open the PDF in Books or Files, and swipe down from the top with two fingers. A small controller appears with play, pause and speed.

It’s good for an article or a few pages. As an audiobook it’s awkward. It reads page numbers, headers and footnote markers, it doesn’t know where chapters start, and when you stop you have to find your place again. Download one of the enhanced voices in the Spoken Content settings, because they’re a clear step up from the default.

Option 2: Convert it on a computer

Desktop text-to-speech tools can turn a whole PDF into MP3 or M4B files that you copy to the phone. You end up with a real audio file. It costs you time, disk space and a fiddly round trip for every book. A lot of online converters also upload your document to their server, so think twice if it’s private.

Option 3: An app that narrates on the phone

A reader app imports the PDF, pulls out the text and treats it as a book, with chapters, a saved place, a sleep timer and lock-screen controls. Aloud works this way. I make it, so weigh that. Its voice is generated on the iPhone rather than on a server.

Step by step with Aloud

• 1. Get the PDF onto the phone. Save it to Files, or leave it where it arrived, in Mail, Messages or a cloud drive.
• 2. Share it to Aloud, or import it from inside the app. The first import is free.
• 3. Let it tidy the text. Lines that repeat at the top or bottom of most pages, like the book title, the author or a bare page number, get skipped. So you don’t hear “Chapter Three, 47” every two minutes. Words hyphenated across a line break are joined back up.
• 4. Check the chapters. Headings like “Chapter”, “Part” or “Introduction” start a new chapter. If there aren’t any, you get numbered sections instead.
• 5. Pick a voice and press play. Narration starts almost straight away and is generated as you listen, so there’s no wait while the whole file processes.

Limits

PDF is a layout format. It records where each letter sits on the page, not which paragraph it belongs to, so any tool pulling text out of one is guessing. These trip up Aloud and everything else:

• Two-column layouts, where the reading order can jump between columns.
• Tables, charts and equations, which have no sensible spoken form.
• Footnotes, which get read where they sit on the page, not where they’re referenced.
• DRM-protected PDFs, which only open in the app they were sold for.

A novel, report or long essay usually comes out well. For a heavily formatted document, listen to the first chapter before you commit a long drive to it.

Common questions