ChatPDF

ChatPDF is an AI‑powered document interaction platform that allows users to upload PDFs and instantly chat with them to extract insights, summaries, and answers. It provides natural language querying, contextual search, and AI‑driven summarization, making it easier for students, researchers, and professionals to understand complex documents without manually reading every page.

It offers document Q&A, summarization, citation extraction, and multilingual support. ChatPDF also supports collaboration features, export options, and enterprise‑grade security, helping organizations save time, improve research workflows, and enhance productivity.

And the best part? ChatPDF is freemium — it offers a free tier with limited document uploads and queries, while paid subscription plans unlock larger file sizes, unlimited queries, and advanced features. The entry paid plan starts at $5/month.