Asking a document questions
Finding a specific answer in a long PDF — a deadline in a contract, a figure in a report, a step in a manual — usually means skimming pages of text. Chat with PDF lets you type the question in plain language and get an answer drawn from the document, with follow-up questions so you can dig deeper.
How it works
Your browser extracts the text of the PDF, marking where each page starts. Each time you ask something, that text and the conversation so far are sent through our server to an AI model, which writes a reply based on the document. Suggested questions help you get started, and follow-ups work because the earlier messages are included each time.
The PDF file stays in your browser. PDF Studio does not keep a copy of the text, but the AI service processes it, so avoid chatting with documents containing information you must not share with a third party. Each tool allows 10 requests per minute per visitor.
Getting good answers
Ask specific questions (“What is the notice period for termination?”) rather than vague ones. Ask the model to quote the relevant passage so you can verify it. If the document does not cover something, the answer may say so — or, occasionally, the model may guess, so be wary of answers that seem too confident. Use the page markers in the text to look up the original.
Limits
About the first 28,000 characters of text (roughly 4,500 words) of the document are available to the model, so questions about later parts of a long file cannot be answered; split the PDF with Split PDF and chat with the relevant part. Scanned PDFs contain no text, so run OCR PDF first. Do not rely on AI answers alone for legal, medical, or financial decisions.