ChatPDF.so utilizes GPT-4's power to engage with PDF documents, enabling users to upload multiple PDFs and interact in a conversational Q&A format to obtain natural language responses with citations. It includes features for summarizing lengthy documents, catering to professionals and students who require efficient information processing. Supporting multiple languages and providing shareable chat links for team collaboration, ChatPDF.so aims to streamline workflows, facilitate research, and enhance study methods by accelerating data retrieval and comprehension.