Question: I need a tool that can process and search PDFs of different languages and topics, do you know of any?

ChatPDF is an AI-powered information retrieval system designed to help you better understand PDFs. It can handle multi-file chats and PDFs in any language. It's good for research papers, academic papers, legal contracts, financial reports and training manuals. The tool can summarize and answer questions so you can get more out of your documents.

Another good option is PDFGPT.IO. The system lets you upload PDFs and get immediate answers by asking questions. It's good for study aids, personal assistants, automating tasks and streamlining work processes. PDFGPT.IO also offers more advanced research tools and project management abilities, so it's good for researchers, companies and teachers.

If you want a conversational interface, AskYourPDF is a good option. It uses ChatGPT to let you ask questions of your documents and offers a Chrome extension and conversation history. That can be useful for boosting productivity and quickly finding information in long PDFs. It also offers different pricing levels, from free to enterprise plans.

Last, ChatWith+ is a plugin that lets you extend the user interface of ChatGPT, letting you search for and process PDF files directly in the chat interface. The plugin can handle PDFs of any size, language, subject or length, and the documents are embedded and deleted after 12-24 hours, so there's no permanent data storage. It's a convenient way to process and search PDFs without having to leave the chat interface.