ChatGPT, a popular conversational AI model, lacks native support for information retrieval from PDFs due to its inability to analyze PDF structures. However, tools like ChatPDF, PDFgear Chatbot, PDF ChatBot, and Chat with PDF can be used, but they have limitations such as limited scalability and accuracy. Vectara, an LLM-powered answer as a service platform, provides an out-of-the-box solution for information retrieval and conversational AI with PDFs, offering seamless interactions, near-real-time responses, and scalability. With a drag-and-drop interface, users can easily search and ask questions of their PDFs within seconds, making Vectara an attractive option for organizations looking for a reliable PDF information retrieval solution.