What this does
Open a PDF and tap the speaker button: the reader starts at the page you are on and carries on to the next pages until you stop it.
It uses the voices already on your phone or computer, so it works with English and, where your device has the voices, Hindi and Telugu.
Tips
- Scanned PDFs are pictures and have no text to read. Run OCR PDF first, then open the result here.
- Change the voice and speed in your phone's text-to-speech settings.
How to use it
- Open your PDF
- Read, search, zoom or listen with Read aloud
- Tap Tools to compress, sign, edit or convert the same file
Questions people ask
Does read aloud work offline?
Usually yes, with the voices installed on your device. Some phones download extra voices the first time.
Is my PDF uploaded to read it?
No. It opens inside your browser on this device. Nothing is sent anywhere, and it works offline once loaded.
Will it remember where I stopped?
Yes. Open the same PDF again and it goes back to that page. Recent files are kept only on this device, and you can clear them any time.
Can I make PDFtoOne open my PDFs?
On a Windows, Mac or Chromebook computer, install the PDFtoOne app from Chrome or Edge and choose it in "Open with". On Android, use Share and pick PDFtoOne.
Can it read a scanned PDF aloud or search it?
Scans are pictures, so they have no text yet. Use OCR PDF from the Tools button first, then open the result here.
Is PDF Reader really free?
Yes. Every PDFtoOne tool is free with no login, no daily limit and no watermark. The site is supported by ads.
Is there a file size limit?
We set no limit. Files are processed by your own device, so the only limit is its memory. Computers handle very large files; phones handle most everyday files easily.
Does it work offline?
Yes. Once you have used a tool, it keeps working without internet. You can also install PDFtoOne as an app.