If you need a powerful foundation for analyzing documents as fast as possible, Coral AI is a great pick. It can extract data from PDFs in more than 90 languages and can perform tasks like summarizing documents, answering questions with citations and translating text. It's geared to let people free up their time by understanding lots of different documents, like books, legal briefs and research papers.
Another option is ChatDOC, an AI information retrieval system that can handle PDF, DOC and EPUB files. It can answer questions immediately, perform deeper analysis and handle image processing. With a browser extension to upload files easily and encryption to protect your data, ChatDOC is good for students, professionals and businesses that need to analyze documents as fast as possible.
Unriddle is also notable as an AI assistant that can help you understand documents better with immediate answers, summaries of complex subjects and interactive graphs that show relationships. It can handle more than 90 languages and big PDF files, making it good for researchers and PhD students who need to read and extract information from lots of documents.
For a more general-purpose tool, ChatPDF is geared to understand PDFs, in particular research papers, academic documents and legal contracts. It can handle multi-file chats, cite sources and process documents in any language. It's good for students, researchers and professionals who want to get quick answers and summaries out of lots of PDF documents.