Question: I need a way to create a knowledge base from my PDF documents, can you suggest a solution?

If you want a service to turn your PDF files into a knowledge base, Documind is a good choice. It lets you train a custom chatbot based on your PDFs, then use that chatbot to ask questions and get answers out of the documents. You can upload hundreds of PDFs in a batch and chat with them all at once, so it can be a good option for students or professionals who want to get some work done. The service promises to protect data security and privacy, storing data in the EU and performing regular security audits.

Another good option is ChatPDF, which uses large language GPT-4 technology to summarize and interact with PDF files. You can upload multiple PDFs, ask questions in natural language, and get text in response. It can handle multiple languages and has a multi-file chat option, so it's good for researchers, students and professionals. ChatPDF's productivity and decision-making focus means it can help you get work done.

If you want a service that can handle more than just PDFs and has more advanced features, check out Knibble. It lets you create instant knowledge bases and embeddable chatbots for websites or apps so you can chat with lots of documents and web pages at once. Knibble features include document summarization, customizable chatbots and webpage scraping abilities, so it's a good option if you want to wrangle and extract knowledge from a variety of sources.

If you want a service that can handle more than just PDFs, ChatDOC is worth a look. It can analyze and summarize documents in PDF, DOC, and other formats. With features like instant answers, AI analysis and multi-document chat, ChatDOC can serve as a trusted AI assistant, providing answers with citations. It also has a browser extension for easy file upload and encryption for privacy.