Question: I need a tool that can summarize long PDF documents for me, do you know of any?

ChatDOC is a good option, with immediate analysis and summarization of documents in various formats, including PDF. It has a browser extension that lets you upload PDFs with a click and get Q&A results, and it encrypts your data for privacy. It's good for students, professionals and businesses that want to automate document analysis.

Another option is the AI PDF Summarizer, which is geared specifically for summarizing PDFs, extracting key points and offering more in-depth information. It works with multiple languages and subjects like academic research, business and law. It's designed to improve understanding and engagement with logical, easy-to-follow summaries.

If you want to do more with a document, ChatPDF lets you have a multi-file chat to organize and ask questions of multiple PDFs in one conversation. It works with multiple languages and can cite sources, so it's good for students, researchers and pros who want to have well-sourced, detailed summaries.

Last, PDF GPT offers summarization, question answering, translation and citation, all through AI. It can handle a variety of documents and languages, and can save you time and work with its ability to quickly digest documents.