ChatPDF

ChatPDF lets you chat with any PDF document, asking questions and getting answers with page-level citations from research papers and reports.

Overview

ChatPDF makes dense documents conversational. Upload a PDF and ask questions in natural language; the tool retrieves relevant passages and answers with references to the exact pages, so verification takes seconds. It handles research papers, legal contracts, manuals, and textbooks equally well, and supports follow-up questions that refine earlier answers. Multi-file chats let users query several documents together, making it useful for comparing studies or reviewing document sets. The tool’s simplicity is its advantage: upload, ask, and receive cited answers within a minute, with no configuration. Page-level citations make verification trivial and reduce the risk of hallucinated claims. Multi-file mode supports comparative work, such as reviewing several studies or contracts side by side.

Key Features

• Conversational Q&A over any uploaded PDF document
• Page-level citations in every answer for rapid verification
• Multi-file chats for querying and comparing several documents at once
• Follow-up questioning that refines and deepens earlier answers
• Support for research papers, contracts, manuals, and textbooks
• Secure document handling with private, per-user processing
• Web-based access requiring no installation or setup

Pricing

ChatPDF is freemium. Free use covers a limited number of PDFs and questions per day, while Plus plans raise limits substantially, add multi-file chats, and enable larger documents at an affordable monthly price. The Plus plan is inexpensive and well matched to students and professionals with regular document work.

Who Is It For

ChatPDF is for students, lawyers, and professionals who need quick answers from long documents and want citations they can check against the original text. Lawyers and consultants reviewing long contracts use it to extract obligations and key clauses quickly. Students reviewing exam materials and lecture notes find the same workflow helpful for revision.

FAQ

Is ChatPDF free to use?

Yes, a free tier with daily limits exists; the Plus plan increases PDF and question allowances and unlocks multi-file chats. Free daily limits suit occasional questions; Plus supports heavy document work comfortably.

Does ChatPDF offer an API?

ChatPDF offers plans with API access for teams that want document Q&A embedded in their own products. API plans let product teams add document Q&A to their own software offerings.

How does ChatPDF compare to alternatives?

ChatPDF is simpler and faster to start than NotebookLM, which offers broader source management and note-taking features. ChatPDF is the quick answer tool; NotebookLM offers deeper project-style research with multiple source types.