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Chat with PDF

Ask a PDF questions and get answers with the passages used as sources. Only a few passages are sent to the AI provider.

AvailableExternal APIInput: PDF

How to use: Chat with PDF

  1. Select the PDF you want to talk to (with selectable text).
  2. Wait while it is read in your browser: you will see how many pages and passages it has.
  3. Type a question and press “Ask”; you can keep going with follow-up questions.
  4. Open “Passages used” to check where each answer comes from.

What it accepts and what you get

Input
A PDF of up to 25 MB and 300 pages with selectable text (not scanned).
Output
A conversation: each answer with the passages of the PDF (and their page) it is based on.
Where your data is processed
The PDF is read in your browser and only a few relevant passages (never the whole file) are sent to the AI provider. TodoToolsOnline does not store or log it, but the provider handles it under its own policy. Do not include confidential data.

Limitations and notes

  • The PDF is read in your browser; only a few relevant passages are sent to the provider, never the whole file.
  • Passage search works on words, not meaning: use terms that appear in the document.
  • If what you ask is not in the passages sent, the answer will say it is not found.
  • Scanned PDFs need to go through “OCR for PDF” first.
  • TodoToolsOnline does not store or log the content; the AI provider handles it under its own policy: do not include confidential data.
  • AI can make mistakes: always check the result.
  • There are per-minute and daily usage limits to prevent abuse.
  • If the administrator has not switched the provider on, the tool says so and processes nothing.

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