ChatPDF

ChatPDF is a simple but transformative AI tool that enables natural language interaction with PDF documents. Upload a research paper, thesis, or report, and ask questions like 'What methodology did they use?' or 'Summarize the findings.' It finds relevant passages, extracts quotes, and even highlights contradictions across documents. The free tier allows up to 3 PDFs/day (120 pages each) — sufficient for most student needs. Unlike abstract summarizers, it’s conversational and adaptive, making paper reading feel like a dialogue. Excellent for non-native English speakers or anyone overwhelmed by technical jargon.