ChatPDF

ChatPDF places documents and chat in adjacent views, helping users ask questions and extract key points while reading papers, books, or work materials. Answers include citations that link back to the original document content, making it easy to revisit the context for verification.

The platform supports formats such as PDF, Word, PowerPoint, Markdown, and plain text, and organizes multi-file conversations through folders. Users can also ask questions in different languages, while the public workspace features separate access points for videos, web pages, writing, summaries, and learning tools.

You can experience the core features without an account; saving history and certain multi-document capabilities require a corresponding account. The free plan differs from the Plus plan in terms of file analysis and advanced features. Before uploading, please verify your data permissions, and citation-based localization should not replace manual review of key figures, conclusions, and translations.

Students, researchers, and document knowledge workers

2026-10-24 The official FAQ states that the free plan allows you to analyze 2 documents per day, while Plus offers higher or unlimited analysis and advanced features. Core trial access requires no registration, but features like history saving do require an account; specific document limits and other tool quotas remain subject to your current plan.