PDFNinja

PDF to Audio

Turn any PDF into an audiobook · Studio-quality neural voices · Free

Drop a PDF or tap to upload

Text-based PDFs supported. For scans, run OCR first.

Studio-quality voices

Eight neural voices, from warm and neutral to rich narrator tones.

Seamless playback

Long PDFs are stitched into one continuous MP3 you can scrub through.

Adjustable speed

0.5× to 2× on the fly. Estimated listen time updates live.

Text stays local

PDF parsing runs in your browser. Only the extracted text is sent for synthesis.

Free forever

No signup, no watermark, no length caps on the download.

Download or stream

Play right on the page, or grab an MP3 for your commute.

Page ranges

Skip the cover and index. Convert just the chapters you want to hear.

Frequently Asked Questions

Does it work on scanned PDFs?

Only if the PDF already has a text layer. For pure images, run our Searchable PDF (OCR) tool first, then bring the result back here.

What voices are available?

Eight neural voices covering warm/neutral, bright, deep and storyteller styles. Preview them by generating a short page range first.

Can I change the reading speed?

Yes — anywhere from 0.5× to 2×. The setting is baked into the generated MP3, so you don't lose the pitch quality.

Is my document uploaded?

The PDF itself stays on your device — text is extracted in the browser. Only the extracted text is sent to the AI voice model for synthesis.

How long can the PDF be?

There is no hard cap, but very long PDFs are split into segments and stitched together, which uses more AI credits. Trim with page ranges to save on cost.

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