Naomi
English · Narration
Accessible PDF to Audio
Free to start. No card needed.
A scanned PDF is rejected outright — there's no OCR here. Upload a PDF with a real text layer instead and get an MP3 with SRT captions, split by heading.
Sound tags and written directions work on every plan, Free included. See plans
“It's fast and dead simple to use: paste your text, pick a voice, done. No fuss, no learning curve.”
“As a professor who records frequent online lectures, I’ve found Vocallab AI to be an incredible tool for my workflow. The voice quality is remarkably lifelike…”
Step-by-step guide
How to Use Accessible PDF to Audio
Start for free — no credit card, no software to install.
Check for a text layer first
Open the PDF and try to select a line — if nothing highlights, it's a scan and the upload will fail.Upload the text-based PDF
A file exported from a word processor or built as a digital form carries the text layer this needs.Generate and download
The narrated audio downloads as one merged MP3, WAV or an M4B with chapter markers, with a matching SRT file.
Accessible PDF to Audio
Features & Capabilities
Everything you need to create professional voiceovers — in one tool.
Text-layer check on upload
A PDF without selectable text is rejected immediately, with no partial or garbled result to troubleshoot.No OCR, by design
There's no scanned-page handling here — a document needs a genuine text layer before it arrives.Heading-based narration
Where a document carries heading structure, the audio follows it, useful for anything with sections.MP3 and SRT output
Every generation downloads as MP3, with WAV available from Pro upward, and a timed SRT caption file alongside it.
Use cases
What Can You Create with Accessible PDF to Audio?
From TikTok to podcasts — here's where creators use this tool most.
A single document requested for audio
A policy, a form or a handout comes in as a one-off request; checking it has a text layer takes a minute and avoids starting a job that won't finish.Digitally-created back-catalogue material
Documents produced natively as PDF — reports, minutes, typed forms — convert directly, unlike anything that started life on paper and was scanned in.A procurement or pilot conversation
Knowing the OCR limit upfront means a decision about whether this tool fits a given archive can be made before any commitment, not after.Recently digitised material
A document converted to PDF straight from a word processor or publishing tool, rather than photographed or photocopied, is the kind that narrates cleanly.
vs Standard TTS
VocalLab vs Standard Text-to-Speech
See why creators switch from generic TTS tools to VocalLab.
| VocalLab AI | Standard TTS | |
|---|---|---|
| Audio quality | Studio-quality AI | No |
| MP3 export | Yes | No |
| SRT caption export | Yes | No |
| Word-level highlighting | Yes | No |
| Emotion & style control | Yes | No |
| Commercial rights | Yes | No |
| Instant generation | Yes | No |
| Free tier | No credit card needed | No |
Recommended Voices
Matched to this tool. Play a sample, then use it in Studio.
About this tool
Everything you need to know about Accessible PDF to Audio
A scanned PDF is rejected before anything else happens — there's no OCR step here, so a page that's really an image of text won't convert. What does work is a PDF with a real text layer: something exported from a word processor, a form built digitally, a policy document typed rather than photocopied. Upload it and it narrates in full, split by heading where the document has one. For a library, school or public body converting documents on request, checking for a text layer first, before committing time or budget, saves a wasted step later.
People also search for
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Why was my PDF rejected?
It has no selectable text, which usually means it's a scan of a physical page; there's no OCR step to recover text from an image like that.
Is OCR available anywhere in this tool?
No, OCR isn't offered at all — a document needs a real text layer before it's uploaded here.
How do I check a PDF before uploading it?
Open it in any PDF reader and try to highlight a line of text; if the cursor selects real words, the file has a text layer and will upload.
What happens to a large back-catalogue of scanned files?
Those need OCR or retyping somewhere else first — this tool starts from a document that already has real text in it.
Does this make a document meet an accessibility standard?
No, converting one file to audio is one input to a broader accessible-document practice — it isn't a compliance step on its own.
Turn your script into a voiceover.
60 free points, no card. Paste your text, pick a voice, export the MP3.