⚖️ One chat, all the AIs

Chat with any PDF

Upload a PDF and compare Claude, GPT, Gemini and more in one chat — every answer cited to the exact page.

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Drop a PDF to start chatting

PDF, Word, PowerPoint or text — drop it, browse, or paste a link.

✅ Answers cited to the page ⚖️ Compare every top AI model 🆓 Free to try, no card 🔒 Private & auto-deleted 🌍 100+ languages
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One chat, all the AIs

Ask once and compare how Claude, GPT, Gemini, Llama and DeepSeek each answer from your document — side by side, for one price. No juggling subscriptions.

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Cited, verifiable answers

Every claim links to the page it came from. Click a citation to jump to the exact passage and check it yourself.

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Long docs & whole books

Hundred-page reports, textbooks, contracts and dockets — PDF.chat finds the relevant pages and answers from them.

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Summaries & starter questions

Get an instant summary on upload plus suggested questions, so you know what to ask first.

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Side-by-side reading

Read the original PDF beside the chat. Ask a question, click a citation, and the page scrolls into view.

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Free OCR for scans

Scanned or photographed PDFs are read with OCR first, so you can chat with paper documents too.

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Simple API

Chat with a PDF from your own app with one request. Metered per page, no surprises.

Create a free account

Get more questions every month, multi-document chat, and save your library — free to start, no card required.

Sign up free See plans

How it works

1

Upload your PDF

Drop a PDF, choose a file, or paste a link. Scanned documents are read with OCR automatically.

2

Ask anything

Ask questions in plain language — summaries, specific facts, dates, totals, clauses. Multi-turn, with memory.

3

Get cited answers

Answers come back grounded in your document with page citations. Click one to jump to the exact passage.

Chat with PDFs from your own app

A simple REST API: upload a PDF, ask a question, get an answer cited to the page.

# 1. Upload a PDF
curl -X POST https://pdf.chat/api/v1/ocr/ \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -F "file=@contract.pdf"

# 2. Ask a question — the answer cites the page it came from
curl -X POST https://pdf.chat/api/v1/chat/UUID/ \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"message": "What is the termination notice period?"}'
Read the API docs →

Frequently asked questions

Yes. Upload a PDF and start chatting with no credit card. A free account adds more questions each month, and paid plans unlock larger documents, multi-document chat, and the highest-accuracy AI models.

PDFs of every kind — contracts, research papers, textbooks, financial reports, manuals and ebooks — plus Word, PowerPoint, and text files. Scanned PDFs are read with free OCR first.

Every answer is grounded in your document and cites the page it came from. Click any citation to jump to that page and see the exact passage highlighted, so you can verify it yourself.

Yes. PDF.chat indexes long documents and retrieves the most relevant pages for each question, so it works on hundred-page reports, textbooks and dockets.

Your files are processed only to answer your questions and are deleted automatically. We never sell, share, or train on your documents.

You can chat with documents in over 100 languages, and ask your questions in your own language.

Yes. On upload PDF.chat can summarize the document and suggest starter questions, so you know what to ask first.

No. PDF.chat runs in your browser — drop a PDF and start chatting. Developers can also use the REST API.
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