Audio to PDF
Transcribe any audio file to an editable PDF using on-device Whisper AI.
Runs in your browser · files never leave your device
How to use Audio to PDF
- 1
Choose an audio file or record with your microphone.
- 2
Adjust the options – the defaults work for most files.
- 3
Download your PDF.
- 100% in your browser – no upload
- Free, no sign-up, no watermark
- Works offline once loaded
- Part of 67 private PDF tools
Questions & answers
Which languages are supported?
Whisper recognises English, Hindi, Bengali, Tamil, Telugu, Marathi, Gujarati and dozens more. Auto-detection is available.
Is Audio to PDF free?
Yes, completely free with no limits on the number of files and no watermark.
Are my files uploaded to a server?
No. Everything runs in your browser on your own device. Your documents are processed locally and never leave your computer or phone.
Does Audio to PDF work on mobile?
Yes. It works in any modern browser on Android, iPhone, Windows, macOS and Linux. Convert → PDF tools also work offline after your first visit.
Transcribe any audio file to an editable PDF using on-device Whisper AI. OurPDF does this entirely inside your browser: nothing is uploaded, there is no account and no watermark.