Yes. The free plan covers 2 PDFs per day, each up to 120 pages, with 50 questions per day, and you can start without creating an account. Plus removes the document and question limits for a monthly or annual fee.

Which file types does ChatPDF accept besides PDF?

It also accepts Word documents (.doc, .docx), PowerPoint files (.ppt, .pptx), Markdown (.md) and plain text (.txt). Documents can be in any language, and you can chat in a different language from the one the file is written in.

Does ChatPDF cite its sources?

Yes. Answers are anchored to the document with built-in citations, and clicking one scrolls the side-by-side reader to the passage the answer came from, so claims can be checked against the original text.

What happens to my uploaded files?

Files are encrypted in transit and at rest, and storage is with a SOC 2 Type II certified provider. Documents stay private by default, sharing is link-based and revocable, and you can delete your documents at any time.

ChatPDF

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Ask questions and summarize PDF documents

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ChatPDF 是什么？

ChatPDF turns a document into a conversation. You drop a file onto chatpdf.com — no account is needed — and start asking questions; answers come back with citations that jump to the exact page they came from, with the document and the chat shown side by side. Questions are routed between GPT-4o and GPT-4o-mini depending on complexity. It accepts more than PDFs: Word files, PowerPoint decks, Markdown and plain text all work, in any language, and you can ask in a different language from the document's.

Folders group several files into a single multi-document chat, so a set of papers, contracts or reports can be compared and cross-questioned together. ChatPDF is run by ChatPDF GmbH in Germany, stores files with a SOC 2 Type II certified provider, and lets you share a chat through a link that recipients can open without an account. It is aimed at researchers working through papers, students studying from course material, and professionals who need answers out of contracts, manuals and financial reports.

核心功能

Chat with PDFs, Word, PowerPoint, Markdown and text files
Answers with clickable citations to the exact source page
Multi-file chats: folders hold several documents in one conversation
Side-by-side document and chat view for verification
Works in any language, and across languages within one document
Shareable chat links that recipients can open without an account
No sign-up required to start on the free plan

如何使用 ChatPDF

1
Upload a document
Drag a PDF or other supported file onto chatpdf.com, or paste a URL. No account is needed to begin.
2
Ask questions
Type questions in plain language and get answers with citations; click a citation to jump to the source passage in the side-by-side reader.
3
Build a folder for several files
Create a free account, group related documents in a folder, and ask questions that compare or combine them.
4
Upgrade for volume
Move to Plus when the daily free limits bite, to unlock unlimited documents and questions and much larger files.

ChatPDF 价格

套餐	价格	周期
Free	$0	—2 PDFs per day, up to 120 pages per PDF and 50 questions per day; no account needed to start
Plus	$19.99	per monthUnlimited documents and questions, up to 2,000 pages per PDF and 32 MB files; $139.99/year on annual billing; folders, multi-file chats and GPT-4o routing