AI Features Study Tools Listen All Features Help Download App
Text-to-Speech Reader

Listen to Any PDF Like an
Audiobook

Turn textbooks, reports, and articles into audio. 150+ natural voices, background play, and word-by-word highlighting.

150+ Voices
Word Highlighting
Background Play
Works Offline
PDF Text to Speech Interface

Why Read When You Can Listen?

Commute & Learn

Turn dead time into learning time. Listen to research papers on the subway.

Better Retention

Listening while reading along (with highlighting) boosts comprehension.

Save Your Eyes

Give your eyes a break from screens after a long day.

Advanced Listening Features

Auto Language Detection

PDFAI detects the language of your document (32 supported) and picks the right voice automatically.

32 Languages

Resume Anywhere

Stop listening on your iPhone, pick up exactly where you left off on your iPad.

iCloud Sync

Adjustable Speed

From 0.5x for language learners to 2.0x for speed listeners.

0.5x - 2.0x

Word-by-Word Highlighting

Follow along as each word is highlighted in sync with the audio. Perfect for studying.

Unlimited

Background Play

Keep listening while using other apps or with screen locked. Full Lock Screen controls.

Unlimited

Export as M4A Audio

Download PDFs as audio files to listen offline in any app. Perfect for commutes.

Premium

Start Listening Today

Turn your documents into audiobooks. Free forever with 150+ natural voices.

Download PDFAI Free
150+ Voices 32 Languages Works Offline