How to convert a PDF to an audiobook (and keep the files)
How to convert a PDF to an audiobook: listen in a reader app, or turn each chapter into an audio file you keep. Step by step, and it works for EPUB books too.
“Convert a PDF to an audiobook” can mean two different things. Maybe you want to listen to the book — on a walk, in the car, with the screen off. Or you want audio files you can keep, play in any app and move between devices. The first takes seconds. The second takes some setup, chapter by chapter. This guide covers both, and everything here works the same way for a DRM-free EPUB.
Short answer: to just listen, open the PDF in a read-aloud app and press play — there’s nothing to convert. To get files, paste each chapter’s text into a text-to-speech tool that exports audio, save one file per chapter with a numbered name, and keep them together in one folder.
Two ways to turn a PDF into an audiobook
| Listen in a reader app | Export audio files | |
|---|---|---|
| What you get | The book read aloud inside the app | One audio file per chapter |
| Setup | Open the file, press play | A few minutes per chapter |
| Plays in other apps | No | Yes, any audio player |
| Text highlighted while you listen | Yes | Only while you preview in the tool |
| Your place saved | Yes, per book | Depends on your audio player |
| In VoiceRead | Unlimited with standard voices, free | 3 free downloads; unlimited with Pro |
Listen in a reader if you simply want to get through the book. In VoiceRead, tap File, pick the PDF or EPUB in the Files app and press play. Each sentence is highlighted, playback continues with the screen locked, and every book keeps its place. See PDF reader aloud and EPUB reader with text to speech for the details.
Export audio files if you want the book outside the app: in your favorite audiobook player, on a device without the reader, or archived in a folder. The rest of this guide covers that route — turning a PDF into audio files you own.
Before you start: check the book
- Does it have a text layer? Open the PDF in the Files app and press and hold a word. If you can select it, you’re set. If you can’t, it’s a scanned PDF — pictures of pages — and the text has to be recognized first. In VoiceRead, scan the paper pages with the camera (scan and read aloud); reading imported scanned PDFs is coming soon.
- Is it DRM-free? Books bought in the Kindle or Apple Books stores are locked to those apps and can’t be opened anywhere else. PDFs you downloaded, public-domain classics and DRM-free EPUBs all work.
- Will you share the files? Keep audio of someone else’s book for your own listening. Publishing or selling it needs the rights holder’s permission; your own writing and public-domain texts are the clear cases.
Step by step: PDF to audio files in VoiceRead Studio
The steps below use Studio, VoiceRead’s voiceover maker, but the chapter-by-chapter method and the naming rules work with any tool that exports audio. One file per chapter keeps each file manageable and the finished book easy to navigate.
- Copy the first chapter’s text. On iPhone, open the PDF in the Files app, press and hold the chapter’s first word, drag the selection handle to its last word and tap Copy. On a Mac it’s quicker, and Universal Clipboard lets you paste the text on your iPhone. For a short document, such as a report or a single chapter, skip this: tap File in Studio to bring in the whole PDF or EPUB as one script.
- Paste it into a new voiceover. In Studio, start a new voiceover and paste the text. Delete anything you don’t want read, such as a running header, page numbers or footnote markers.
- Pick a voice and speed. Preview voices before you choose. Standard voices are free; Pro adds premium voices. Studio speeds run from 0.75× to 1.5×. A natural 1.0× is a good choice for a book, since most audio players let you speed up playback later.
- Generate and listen back. Play the voiceover and the text is highlighted as it’s read. If a name comes out wrong, respell it phonetically in the script and generate again.
- Export. Tap Export, type a file name (see the next section), and choose the format: M4A on any plan, lossless WAV with Pro. With Pro you can also switch on an .srt captions file timed to the voice. Then tap Save to Files, or share the file to another app.
- Repeat for each chapter. Use the same voice and speed every time so the book sounds consistent from start to finish.
Free or Pro: what you can export
The free plan exports M4A at 128 kbps, with 3 downloads in total — enough to try the workflow on a few chapters. Pro gives unlimited downloads, 256 kbps M4A, lossless WAV, .srt captions and commercial use of the audio. For a single book project, the weekly plan ($2.99) may be all you need; you can cancel in your iPhone’s Settings under your Apple ID → Subscriptions. Compare plans.
Name the files so they play in order
Audio players sort files by name, so the name decides the chapter order.
- Start with a two-digit number: 01, 02 … 10. Without the leading zero, many apps put “10” before “2”.
- Add the book and chapter:
01-the-time-machine-introduction.m4a,02-the-time-machine-chapter-2.m4a. - Keep one pattern for every chapter of the book, and one folder per book.
- Captions stay paired. If you export an .srt file, it takes the same name as the audio, so the two stay together.
Where to keep and play your audiobook
- The Files app. Save to Files and make a folder for the book in iCloud Drive or On My iPhone. In iCloud Drive the files are also available on your iPad and Mac. Tap a file to play it right in Files.
- An audio player app. Many podcast and audiobook players can import audio from the Files app. Look for one that remembers your position in each file and has speed control — that turns a folder of chapters into a proper audiobook.
- Other devices. Share the files to a computer or another app straight from the Export screen.
- Mind the space. M4A at 128 kbps takes roughly 60 MB per hour of audio, and about twice that at 256 kbps. WAV is lossless and several times larger, so keep it for editing rather than for carrying a whole book around.
Want one file with chapter markers (M4B) instead of a folder of chapters? Studio exports one file per voiceover. Joining them into a single M4B takes a separate audiobook tool on a computer.
What isn’t possible (yet)
- DRM-protected books. Kindle and Apple Books store purchases can’t be opened by any other app, VoiceRead included.
- Direct MP3 export. It’s coming soon. Today you get M4A, which plays nearly everywhere MP3 does.
- Scanned PDFs. Their text needs recognizing first. Camera scanning works today; reading imported scanned PDFs is coming soon.
- Automatic chapter splitting. One voiceover makes one file, so splitting the book into chapters is up to you.
More on formats, quality and offline use on the offline and audio export page.
The bottom line
To hear a PDF, you don’t need to convert anything: open it in a read-aloud app and press play. To own the audio, work chapter by chapter — copy the text, generate a voiceover, export it with a numbered file name and keep the chapters in one folder. The same steps turn a DRM-free EPUB into an audiobook, and the files play in the Files app or any audio player you like.