# ChatPDF

Document chat with PDF-linked answers and a backend API.

- Company: ChatPDF
- Category: Productivity
- Business model: Freemium
- Availability: unknown
- Launched: Not recorded
- Tags: document-qa, pdf, citations
- Website: https://www.chatpdf.com/
- Documentation: https://www.chatpdf.com/docs/api/backend
- Pricing page: Not recorded
- License: Not recorded
- Canonical URL: https://globalaiproductindex.com/products/chatpdf/
- Record updated: 2026-11-03

ChatPDF combines a document reader with conversational questions, summaries and source references. Folders support conversations across several documents, while its backend API lets developers build PDF-based applications.

## Key features

- Answers link to passages in the uploaded PDF.
- Folders combine multiple files in one conversation.
- The backend API accepts PDF uploads or public PDF URLs.

## Use cases

- Compare arguments across research papers.
- Build a chatbot over uploaded PDF manuals.

## Pricing

The website lists a free allowance of 2 documents per day and a paid Plus upgrade. API file limits are separate from the website plan; check the relevant documentation.

## FAQ

**Which file formats does the website accept?**

Its FAQ lists PDF, Word, PowerPoint, Markdown and text files.

**Are API chats stateful?**

No. The API documentation says the caller must send the relevant message history with each request.

## Sources

- [ChatPDF product and FAQ](https://www.chatpdf.com/)
- [ChatPDF backend API documentation](https://www.chatpdf.com/docs/api/backend)

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Data from the [Global AI Product Index](https://globalaiproductindex.com/), licensed CC BY 4.0.