What is ChatPDF?
ChatPDF is a web tool where you upload a document, or paste text or a link, and ask questions about it in a chat. The vendor lists PDF, Word, PowerPoint, Markdown and text files, and it runs in a web browser on desktop, tablet or phone, with a desktop app and a mobile app also listed.
Who it's for
It suits people who want to question a document without making an account: the vendor says you can start with no registration, and signing up adds saved chat history and multi-document chats. Developers can also use a separate backend API for PDFs.
Pros & cons
Strengths
- ChatPDF says answers include citations linked to the source passages, and the chat and document can be viewed side by side.
- ChatPDF says documents are encrypted in transit with SSL and in storage, are private by default, can be deleted at any time, and are stored with a SOC2 Type II certified vendor.
- ChatPDF says you can create secure share links for a document that recipients open without an account (they see the document, not your chat), and you can revoke access at any time.
- ChatPDF lists multi-file chats organized in folders, plus summaries, comparisons and translation, and says documents and chats can be in different languages.
- ChatPDF documents an API with endpoints to add a PDF by URL or file upload, send chat messages, and delete sources; each PDF is limited to 2,000 pages or 32 MB.
- ChatPDF lists related pages for chat with YouTube, PDF summary, flashcards, slides, AI writer, AI detector and research.
Limitations
- The free plan allows 2 documents a day per the vendor's home page and PDF AI page; the vendor pages read do not state page, file-size or question caps for either plan.
- No official page read shows a price for Plus: the home page and PDF AI page describe it only as unlimited document analysis (or unlimited access) plus extra features, and the home page has no link to a pricing page.
- Reported by third-party sites, which conflict: toolradar (checked Oct 5, 2026) lists Plus at $19.99 a month or $139.99 a year, aisotools (updated Oct 22, 2026) lists $19.99 a month, and top50aitools (checked Aug 2026) lists $5 a month. The same sites also differ on free caps (for example 20 questions a day vs 50, and 10MB vs up to 120MB uploads).
- The vendor's home page says it routes between two OpenAI models. The privacy policy and terms (Notion pages linked from the home page) could not be opened here, so training, retention, refund and cancellation terms are not confirmed.
- The API docs read list limits (6 messages per chat request, 2,500-token cap on history, one file per upload) but show no API pricing or data-retention terms.
Plans and pricing
- Free: $0. 2 documents a day, no account needed; signing up adds saved chat history and multi-document chats. Other caps are not stated on the vendor pages read.
- Plus: Reported $19.99 a month, or $139.99 a year. Vendor describes it as unlimited document analysis and more advanced features. Reported by third-party sites as up to 2,000 pages and 32MB per file; one third-party page lists $5 a month instead.
The free-plan limit and the description of Plus were read from chatpdf.com and its PDF AI page; neither shows a Plus price or any pricing page. Plus prices are Reported by third-party sites that disagree ($19.99 a month with $139.99 a year on one, $19.99 a month on another, $5 a month on a third), in US dollars. Confirm on the live pricing page before subscribing.
Details checked October 2026 against the vendor's own pages. Prices and limits change, so confirm before you buy. Official pricing page ↗
Sources
This profile was compiled from these public pages. We have not run hands-on tests.
ChatPDF — at a glance
ChatPDF is a web tool where you upload a document, or paste text or a link, and ask questions about it in a chat. The vendor lists PDF, Word, PowerPoint, Markdown and text files, and it runs in a web browser on desktop, tablet or phone, with a desktop app and a mobile app also listed.
Try ChatPDF →