PDF audio readers, such as those developed by ElevenLabs, are advanced text-to-speech tools that transform written content from PDF documents and other formats into spoken audio, broadening accessibility for users with visual impairments or reading difficulties. These applications utilize optical character recognition (OCR) to convert text into digital form, which is then processed by TTS engines to produce audible output. ElevenLabs offers two main products: ElevenLabs Studio, an all-in-one audiobook workshop with extensive customization options, and ElevenLabs Reader, a more basic app for on-the-go audio consumption available for iOS. These tools support multiple languages and offer features like customizable voices and adjustable reading speeds, making them versatile for personal, educational, and commercial use. By providing intuitive interfaces and seamless integration with web pages and cloud services, PDF audio readers are revolutionizing how diverse audiences engage with text-based materials.