PDF to audio
Export the text as a spoken audio file.
Reads the English text of a PDF aloud with a voice that runs in your browser, and saves it as an audio file.
How to use it
- Choose a PDF, and optionally the pages, a voice, a speed and the file type: WAV plays everywhere; Opus is about ten times smaller.
- Select Create audio. The first time, superPDF shows the voice’s size and downloads it only after you select Download: 338 MB for the faster version, or 105 MB for the smaller one. It is kept in this browser.
- Listen to the result on the page, or download it. Select Stop to keep what has been spoken so far.
Options
| Option | Values | Default |
|---|---|---|
| Pages | Page numbers or ranges, for example 1, 3-5 | All pages |
| Voice | One of Heart (female), Bella (female), Nicole (female, soft), Fenrir (male), Michael (male), Puck (male) | Heart (female) |
| Speed | One of normal, slower, faster | normal |
| File type | One of WAV, Opus (smaller file) | WAV |
Output
A WAV or Opus file you can play anywhere, also playable on the page.
How it reads
superPDF joins the lines of each page into paragraphs and reads them sentence by sentence, with a short pause between sentences and a longer one after headings. Numbers, money, dates, times and common abbreviations are read as words, and short words in capitals, such as PDF, are spelled out. Scanned pages are recognized first with OCR PDF.
Limits
No file size or page limit. Everything runs on your device, so very large files are fastest on a computer. The voice reads English only; other languages come out with English pronunciation. Names, abbreviations and technical terms can be mispronounced, and tables, captions and footnotes are read in the order they appear in the text. The smaller version is much slower: on a fast computer, a dense page (four minutes of speech) takes about 30 seconds with the faster version and about six minutes with the smaller one. Choose pages for long documents, or select Stop to keep what is done. WAV files are large (about 2.9 MB a minute); Opus needs a current Chrome, Edge or Firefox, and otherwise you get WAV.
Scanned pages
Scanned pages, including copier scans whose text layer is weak or garbled, are read with the quick reader first (the AI tools run OCR PDF for you), so you get a result straight away. On computers that can run it, superPDF then offers high-accuracy reading beside the result, and improves those pages in the background: in Chat and Ask multiple PDFs the pages behind your latest question come first and new questions use the improved text; elsewhere, Run again with the improved text redoes the result. It runs on this device: nothing leaves it, and it works offline once downloaded. Download: 871 MB, once, only when you choose it; delete it any time in On-device AI models. Speed: about 10 to 30 seconds a page on a recent computer (the offer shows the time for your pages); up to 20 pages are read at a time unless you choose more or pick pages. It reads English and other European languages best; check results in other scripts, and like any OCR it can misread faded or handwritten text. Running page headers, footers and page numbers are left out of the text. If anything goes wrong, the quick result stays, with a short note. See High-accuracy reading.
Privacy
Runs in your browser. Your files are processed on your device and never uploaded.