How to turn a PDF into an audiobook

Five ways to listen to a PDF on your phone or laptop — what each one costs, which handle a whole book, and which give you real chapters.

If you have a PDF — a book you bought, a report, a course reader — there are several ways to have it read aloud, and they are not equally good. The right one depends almost entirely on how long the document is.

1. The free option already on your phone

Both iOS and Android read a PDF aloud with nothing installed. On iPhone it’s Settings → Accessibility → Spoken Content → Speak Screen; then swipe down with two fingers from the top of any page. On Android it’s Settings → Accessibility → Select to Speak, then tap the accessibility button and select the text.

2. Browser read-aloud

Chrome and Edge both read a PDF aloud once it’s open in the browser — Edge’s Read Aloud is the better of the two, with more natural voices and a visible progress bar. Useful for a report you’re already reading at a desk.

The same ceiling applies. Close the tab and you lose your position, and there is no way to jump to a particular chapter because the browser has no idea the document has any.

3. Dedicated text-to-speech apps

Apps like Speechify and NaturalReader do this properly: better voices, adjustable speed, and they’ll keep reading with the screen off. If you mainly work through articles and documents, they are a reasonable thing to pay for.

Most of them treat a book as one continuous stream. That’s fine for a twenty-page paper and increasingly painful past about an hour.

4. Converting to an audiobook with chapters

The difference with a full book is navigation. A three-hundred-page PDF read end to end is roughly nine hours of audio in one block. Lose your place — a call comes in, the app restarts, you switch devices — and there is nowhere to go back to, because there is no “chapter four” to return to.

What fixes it is structure. Echory reads the PDF, works out where each chapter begins and ends, and gives you a chapter list you can skip through — so it remembers where you stopped in each one and picks up there on any device.

You also choose the narrator from ten voices and change it whenever you like, which matters more than it sounds: a commercial audiobook is welded to one voice for twelve hours, and if you don’t get on with it the book is spoiled.

Which to pick

Updated August 2026 · 6 min read