ChatPDF – AI Chat with any PDF

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ChatPDF is a utility application developed by Joseph Works Limited for iOS and macOS. The core function allows users to upload documents in formats such as PDF, TXT, DOCX, CSV, XLSX, PPTX, EPUB, HTML, MD, EML, and MSG. Once uploaded, the app uses AI technology to train a chatbot on the provided data, enabling users to ask questions and receive instant answers. The tool emphasizes multi-language support, attempting to reply in the language of the user’s question regardless of the document’s original language. It targets students studying textbooks, researchers analyzing papers, and professionals reviewing business reports or legal contracts. While marketed as an easy way to build AI chatbots, it functions primarily as a document Q&A interface powered by underlying generative models.