# ClaroPDF Pro – Text to Speech

> Accessible PDF TTS Reader

Canonical page: [https://chrome-stats.com/d/id633997623](https://chrome-stats.com/d/id633997623)

## Overview

- **ID:** `id633997623`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Claro Software Limited
- **Category:** Education
- **Rating:** 4.20 / 5 (48 ratings)
- **Version:** 5.0.20
- **Last updated:** 2023-10-19
- **First published:** 2013-06-25
- **Size:** 147 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/claropdf-pro-text-to-speech/id633997623)
- **Website:** [https://www.clarosoftware.com/portfolio/claropdf/](https://www.clarosoftware.com/portfolio/claropdf/)
- **Privacy policy:** [https://www.clarosoftware.com/legal#privacy](https://www.clarosoftware.com/legal#privacy)

## Description

ClaroPDF Pro is an accessible PDF reading and studying tool that lets you listen to PDFs with human-quality voices, annotate and save notes, and keep files compatible with other PDF apps. It supports up to four free voices in multiple languages, background speech, Speak on tap and Stop on tap controls, and synchronized highlighting.

It also offers adjustable background and text color for readability, full VoiceOver support, a powerful annotation toolbar, and the ability to convert photos or image PDFs into accessible text PDFs using the Claro Cloud conversion service. With iCloud sync, a Save as PDF extension, and cross-device portability, ClaroPDF Pro is built for accessible, productive reading.

## Rankings

- #184,327 — Overall

## Review summary

Users praise ClaroPDF Pro for its strong TTS with text highlighting, robust PDF annotation, OCR, and folder-based organization with multiple voice options. However, recurring issues include crashes and instability, lack of a pause function, page-skipping and misreads around graphics, playback interruptions on device rotation, and a tangled UI that hinders smooth navigation. Overall, the app is powerful when it works but is hampered by reliability and usability problems.

### Pros

- Text-to-speech with live text highlighting while reading PDFs
- PDF annotation and note-taking capabilities
- OCR support to convert images and scanned PDFs to text
- File organization with folders and cross-source document access
- Multiple TTS voices and adjustable speaking speeds

### Cons

- Frequent crashes and instability (freezes/crashes, especially with large files or after updates)
- No pause feature and limited TTS controls, making it hard to resume exactly where you left off
- Page skipping/misreads, especially around graphics, with occasional gibberish
- Playback stops or becomes unreliable when tilting/rotating the device or during navigation
- Cumbersome UI/UX (no full-screen mode, poor scrolling, and challenging navigation)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id633997623)