4 Best Ways to Convert PDF to Audiobook with AI TTS in 2023

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4 Best Ways to Convert PDF to Audiobook with AI TTS in 2023

Last Updated: 2023. 11. 06

Converting PDF to audiobook offers you a convenient way to listen to your e-books, business reports, academic papers, or travel brochures while driving, working out, or doing household chores. Plus, it also makes your PDFs more sharable to all your viewers.

So, if you are after a great solution to convert PDFs to audiobooks for multitasking, easy sharing, or simply easing your eye strain, etc, we’ve got you covered!

In this tutorial, we have handpicked 4 best PDF to audiobook converters and will walk you through how to convert PDF to audiobook with their best features. Let’s dive into it, now!

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Galaxy Style Audiobook Promo

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Best Seller Book Trailer

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Here’s What You Will Learn:

Convert PDF to Audiobook by Speechify

Convert PDF to Audiobook by NaturalReader

Convert PDF to Audiobook by FlexClip

Convert PDF to Audiobook by Nanakeet

Also, read how to convert SRT to speech for audio and video content.

1. Convert PDF to Audiobook by Speechify

If you are a bookworm with a digital library full of e-books in PDF format, whether on your Kindle, Google Drive, OneDrive, or your phone, Speechify, a versatile cross-platform PDF to audiobook converter, is your hassle-free solution to convert PDFs to audiobooks in a breeze.

Convert PDF to audiobook by Speechify on iPhone.

Best Features to Convert PDF to Audiobook by Speechify:

Import PDFs from Google Drive, One Drive, Dropbox, Kindle Library, iCloud Files, etc. to convert PDFs to audiobooks on your phone (IOS, Android) or Speechify web app.

Take pictures of a PDF and convert PDF images to speech.

Paste text from PDF to convert it to audiobook.

Paste a URL and let Speechify convert it to audio.

Crop out unwanted headers and footers in PDFs. So, you won’t be distracted from unneeded messages while listening to your PDF or converted audiobook.

Select from 200+ natural-sounding AI voices plus celebrity voices like Snoop Dogg (languages, gender) across 130+ languages to convert PDFs to audiobooks and you can customize the playback speed of AI voices (1x-4.5x).

For premium users, you can get an AI summary of your PDFs, and auto-skip PDF contents like headers & footers, braces, citations, parentheses, brackets, URLs, and footnotes.

Download converted audio to the Speechify app and listen to your PDFs offline.

Play music in the background as ambient sound.

How to Convert PDF to Audiobook by Speechify on iPhone/Android:

How to convert PDF to audiobook by Speechify on iPhone.

Step 1

Import PDFs to Speechify’s mobile app.

Download Speechify on your iPhone or Android phone > open Speechify app > select from your computer, Kindle Library, Google Drive, iCloud, Dropbox, One Drive, etc. to import your PDF file.

Step 2

Tap the Crop tool to crop out unwanted headers and footers to be converted to speech > click Save & Listen.

Step 3

Tap the AI voice avatar profile icon > select an ideal AI voice avatar > set the language and gender > tap the Speed icon to adjust the playback speed of AI voices.

Downside:

Can’t customize AI voice's voice style, pitch, and natural pauses.

Some of the free AI voices sound a bit too robotic.

Limited music library available and there is no way to upload your music for the background music of your audiobooks.

Can’t save the audiobook beyond Speechify’s mobile app.

2. Convert PDF to Audiobook by NaturalReader

Pretty much like a sibling of Speechify, NaturalReader is another user-friendly and cross-platform PDF to audiobook converter that offers you a seamless experience to convert PDFs to audiobooks in a flash online, on Windows, iPhone, and Android.

Effortlessly convert PDF to audiobook by NaturalReader online.

Best Features to Convert PDF to Audiobook by NaturalReader:

Choose from 140+ human-sounding AI voice avatars across 25+ languages to convert PDFs to audiobooks. You can tailor the playback speed (0.28x-5x) and pronunciations of AI voices as well.

Import PDF files from your local computer, or scanned images, photos, screenshots, and URLs to convert PDFs to audiobooks.

Use the phone camera to scan PDFs to convert PDFs to audiobook; copy and paste text from PDFs to convert it to speech.

Utilize the AI text filter to filter out distracting text like URLs, brackets, subscripts, etc.

Set a timer to tell NaturalReader when to stop reading PDFs.

Highlight and annotate texts in the PDFs.

Downloaded converted Audiobooks in MP3 format to your PC, or phone.

How to Convert PDF to Audiobook by NaturalReader Online:

Step 1

Sign up free for NaturalReader > access its web portal > click the Add Files icon to import your PDF from your local computer.

Step 2

Click the AI voice profile icon to select an ideal AI voice and language that fits your PDF content > set the playback speed of reading > listen to your PDF.

Step 3

You can click the CC icon to display the text being read> search for specific words. Or click the pen tool to highlight the text. By clicking the filter icon, you can skip unwanted text like brackets, and URLs in the original PDF.

Step 4

Click the three dots icon at the top right corner > you can add annotations, set a timer for reading PDF, or download the audiobook in MP3 format to your computer.

Downside:

Can’t edit the audiobook in MP3 format.

No music library available to accompany converted audio to bring PDF audio to life.

Can’t customize the voice style or natural pauses of AI voices.

NaturalReader’s online app only allows you to import PDFs from your local computer.

No desktop app available on Mac.

3. Convert PDF to Audiobook by FlexClip

If you need more than converting PDF to audiobook but also spice up your audiobook with engaging music, and sound effects to ultimately convert PDFs into a compelling audiobook or even an MP4 for YouTube, then the user-friendly and feature-rich FlexClip AI video maker is another great workaround to convert PDFs to audiobooks.

Convert PDF to audiobook by FlexClip online.

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Best Features to Convert PDF to Audiobook by FlexClip:

Harness the hyper-realistic text-to-speech generator to convert PDF to audiobook with ease. There are 400 realistic AI voice avatars available across 140 languages and diverse accents. You can customize AI voices’ age, gender, voice style (14), speed, pitch, and natural pauses.

Seamlessly convert PDF to audiobook by FlexClip online.

Use Free TTS

Select from 74,000+ royalty-free music tracks and sound effects to add vibes and emotions to your audiobooks. You can easily trim and split audio, adjust audio’s volume or layer multiple audio tracks for sound design, or apply fade in/out effects for smooth audio transition.

Use vast royalty-free music and sound effects to bring your audiobook to life.

If you want to repurpose the audiobook into MP4 video for YouTube, FlexClip also offers you thousands of expertly made and fully customized video templates, such as book trailers, movie trailers, YouTube videos, promo & sales, etc., and 4M+ royalty-free stock photos and videos to choose from. You can combine converted audio with eye-catching footage and photos to tell a compelling story.

Preview

Narrative Audiobook Trailer

Use This Template

Preview

Romantic Audiobook

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Horror Audiobook Trailer

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Old Film Title Credits

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In addition, as a full-featured AI video maker, FlexClip also empowers you with other helpful AI tools to automate your audio and video edits and save you tons of precious time. From the AI video script generator, powered by ChatGPT, to the AI auto subtitle generator, text-to-image generator, text-to-video generator, image background remover, audio extractor, etc. you can easily get into your creative flow and create captivating audiobooks and video content like never before.

Auto-generated subtitles for audiobooks in one click.

Add Subtitles Now

How to Convert PDF to Audiobook by FlexClip Online:

Step 1

Use the text-to-speech generator to convert PDF to audiobook.

Access FlexClip > click the Tools tab below > Text to Speech > copy and paste PDF text into the text block > select the language > preview and choose an ideal AI voice avatar > tailor the voice style (friendly, chat, newscast, cheerful, excited, terrified, whispering, etc. ), speed, and pitch > hit the Generate audio button.

Copy the PDF text and select AI voice and convert PDF to audiobook.

Convert PDF to Audiobook Now

Now, you can preview the AI-generated voice > click “+ Save to Media” to save the AI voice to the Media Library. Then, repeat the same step to convert the rest of the PDF text to realistic AI voices.

Preview the AI-generated voice and save it to media library.

A small trick is that you can manually insert commas to add natural pauses to make your AI voices hyper-realistic. Besides, if there is a dialogue involving multiple people, you can use different AI voice avatars and voice styles to highlight the characters with ease.

Add commas to add natural pauses to make AI voices hyper-realistic.

Step 2

Add realistic AI voices to the timeline.

Set the video duration long enough to include all the AI-generated voices > add all the AI voices to the intuitive timeline in sequence. You can trim, split the audio, or adjust the audio's volume when needed.

Add all AI voices to the timeline in sequence.

Step 3

Use royalty-free music and sound effects to bring your audiobook to life.

Click the Audio tab > Sound Effects > search for any amibence sounds based on your audiobook content like “train station”, “footsteps”, “door creak”, etc. to evoke true-to-life emotions in your listeners. You may also search for any music that fits the vibe and occasions in your audiobook.

Add royalty-free music, and sound effects for the sound design of your audiobooks.

Create Now

You can layer multiple audio tracks to create depth and real-world auditory experience for your listeners, or lower the volume of music and sound effects to highlight one’s dialogue and apply fade in/out effect for smoother audio transition as well.

Step 4

Preview and share.

Done with the editing, you can click the Export button > Audio > save your audiobook in MP3 format to your computer.

Export the converted audiobook in MP3 format to your computer.

Alternatively, if you want to add images and footage to repurpose your audiobooks for YouTube to get more likes, comments, and shares, click the Photo and Video tabs to select from 4M+ royalty-free and high-quality stock photos and videos for your audiobook. You can layer multiple images over the black screen and easily animate them for exciting storytelling.

Add royalty-free images and videos to create visuals for your audiobooks.

Wanna get more creative? You can harness the text-to-image generator and use text prompts to create AI-generated images to match the scenes in your audiobooks. There are 17 image styles to choose from, such as double exposure, oil painting, anime, papercut, voxel, futuristic, retro, etc. Please free feel to explore.

Convert text to images for your audiobooks.

Convert Text to Image Now

In addition, you can use the AI auto subtitle generator to transcribe audio to text for burned-in subtitles in your video. The auto-transcription supports 140+ languages and promises over 95% accuracy. You can easily edit and stylize the subtitle and download subtitles in SRT, VTT, SSA, ASS, SUB, SBV, TXT, or CSV formats for other repurposings. Pretty handy!

Auto-transcribe audio to text for subtitles in your audiobooks.

Add Subtitles Now

Customize the style of subtitles and download the subtitles for other repurposings.

Finally, save the 1080P MP4 video to your computer or directly share it to YouTube, Google Drive, One Drive, Dropbox, or even TikTok; a clickable link is also available for your blog posts, newsletters, or other repurposings.

Easily share and repurpose your video content.

Downside:

Can’t directly import PDF files in FlexClip’s in-browser video editor.

4. Convert PDF to Audiobook by Narakeet

Last, but certainly not least, another straightforward PDF to audiobook converter you can turn to is Narakeet, a minimalistic and intuitive online text-to-speech generator that allows you to upload PDF, Word, and EPUB and have them converted to audiobooks.

Convert PDF to audiobook by Narakeet.

Best Features to Convert PDF to Audiobook by Narakeet:

Import PDF, EPUB, RTF, TXT, DOCX, etc. to be converted to audiobooks.

There are 600 AI voices available across 90 languages. You can customize AI voices’ volume and speed.

Export the audiobook in M4A, MP3, WAV formats in a ZIP file.

How to Convert PDF to Audiobook by Narakeet Online:

Step 1

Visit Narakeet’s website > click the Get Started button > Text to Speech Audio.

Step 2

Convert PDF to audiobook.

Click the Upload File button to import your PDF file from your computer > select the preferred language > preview and pick an ideal AI voice > click the Plus sign to open the drop-down menu > customize voice speed, audiobook format, and output mode > click the Create Audio button.

Step 3

Preview the AI-generated voice > click the Download button to save your audiobook to your PC.

Downside:

No audio and video editing tools and music library available to edit converted audiobooks.

No way to customize the AI voice avatar’s voice style and natural pauses.

Free users are limited to uploading 10M files.

Now, It’s Your Move

	Platform	Best Features	Downsides
Speechify	Online, IOS, Android	200+ AI voices across 130+ languages; adjust voice speed; import PDFs from local PC, Clouds, Text, URL, and images; crop out or skip unwanted headers; play music in the background	Can’t tailor AI voice’s style, pitch, natural pauses; some free AI voices sound robotic; can’t upload your music; can’t save converted audiobook beyond Speechify mobile app
NaturalReader	Online, IOS, Android, Windows	140+ AI voices across 25+ languages; import PDFs from local PC, scanned images, photos, screenshots, URLs; AI filter skip unwanted text in PDFs; set timer for reading; highlight and annotate text; save audiobooks in MP3 to PC, or phone	Can’t edit audiobooks; no music library; can’t tailor AI voice’ style and natural pauses; no desktop app on Mac; Can’t import PDFs from Clouds online
FlexClip	Online	400 AI voices across 140 languages and customize AI voice’s voice styles (14), speed, pitch, and natural pauses; select from 74,000+ royalty-free music tracks and sound effects for the sound design of your audiobooks; 4M+ stock photos and videos to repurpose audiobooks into video content; text-to-image generator, AI auto subtitle generator, and more; export audiobooks in MP3 and MP4; thousands of editable video templates	Can’t directly import PDF
Nanakeet	Online	600 AI voices across 90 languages; import PDF, EPUB, RTF, etc. for audiobook conversion; export audiobooks in MP3, M4A, and WAV	No audio and video tools and audio assets available; can’t customize AI voices style and natural pauses

So, please feel free to test out all the PDF to audiobook converters mentioned above and share this post on your Facebook or Twitter to tell us which one suits you best. Cheers to your success!

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Frank /

Passionate about photography, video-making and travel, Frank is a seasoned copywriter and a beloved father of 2-year-old daughter at FlexClip. He is always keen to share his latest discovery about video marketing and tricks to relive your memories through videos and images.