PDF to Audio
Convert PDF text content to spoken audio using text-to-speech synthesis. Perfect for creating audiobooks from PDF documents, accessibility, and hands-free content consumption.
Drop your PDF here
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Complete Guide: PDF to Audio
Everything you need to know about using this tool effectively
This PDF to audio tool uses Kokoro, an 82M parameter neural text-to-speech model, to generate natural-sounding audio from your PDF documents. Upload any PDF - it extracts the text and synthesizes it into spoken audio that you can listen to directly in the browser or download as a WAV file. All processing happens locally on your device using ONNX Runtime Web.
A browser-based AI tool that extracts text from PDF documents and converts it to spoken audio using Kokoro TTS, a high-quality neural text-to-speech model. The model runs entirely in your browser via WebAssembly, so your documents never leave your device. On first use, it downloads the AI model (~86MB) which is then cached by your browser for instant processing on subsequent uses. The synthesized audio can be played immediately or downloaded as a WAV file.
Listening to documents during commutes
Convert reports, articles, or book chapters into audio so you can listen while driving, exercising, or commuting instead of reading on screen.
Accessibility for visually impaired users
Transform PDF documents into spoken audio for users who rely on screen readers or prefer auditory content consumption due to visual impairments.
Proofreading written documents
Listen to your own PDF documents read aloud to catch errors, awkward phrasing, or typos that you might miss when reading silently.
Learning while multitasking
Convert study materials, research papers, or training documents to audio format so you can absorb information while performing other tasks.
Creating audiobooks from PDFs
Turn eBooks, study guides, or any PDF document into a personal audiobook that you can listen to anywhere.
Upload your PDF
Click the upload area or drag your PDF file onto it. The tool extracts all readable text from each page.
Wait for audio generation
The AI model processes the text and generates audio. On first use, it downloads the model (~86MB). Progress is shown in real-time.
Listen or download
Play the generated audio directly in your browser using the built-in player, or download the WAV file for offline use.
First-time use requires downloading the AI model (~86MB) - subsequent conversions are much faster as the model is cached.
PDFs with clear, selectable text work best. Scanned PDFs need OCR preprocessing before audio conversion.
Longer documents take more time to process - the tool shows progress for each audio segment being generated.
The AI model runs locally using WebAssembly, so performance depends on your device's processor.
How does this differ from browser text-to-speech?
This tool uses Kokoro, an 82M parameter neural TTS model, which produces much more natural and expressive audio than standard browser speech synthesis. The quality is significantly higher.
How long does audio generation take?
Processing time depends on the PDF length and your device. The first use is slower as the model downloads (~86MB). Subsequent uses are faster as the model is cached. The tool shows real-time progress for each segment.
Is my file uploaded to a server?
No. All processing happens locally in your browser using ONNX Runtime Web. Your PDF never leaves your device.
Does it work with scanned PDFs?
No. Scanned PDFs contain only images with no selectable text. You would need to run OCR on the document first to extract text before converting to audio.
What audio format is generated?
The tool generates WAV audio files at 24kHz sample rate, which can be played in any audio player or converted to other formats.
Will the model download every time?
No. After the first use, the AI model is cached by your browser. Subsequent conversions will be much faster.