Upload a PDF and ask questions about its content using AI.
Your file stays private. Text is extracted in your browser using PDF.js. Only extracted text is sent to the AI API — your actual PDF file is never uploaded.
Chat with any PDF document using AI. Upload a PDF — a research paper, contract, book, report — and ask questions about its content. The AI reads the document and answers based only on what's in the file.
Free users get 3 questions per day. Premium subscribers get unlimited questions, larger PDF support, and priority processing.
Keywords: chat with PDF, AI PDF assistant, ask PDF questions, PDF chatbot, AI document reader, PDF analyzer.
Chat with PDF turns a document into a conversation partner. Upload a research paper, contract, manual, or book, and the tool reads its text so you can ask questions in plain language and get answers based on what is actually in the file. Text extraction happens in your browser, so the document itself never leaves your device.
The tool opens your PDF locally, pulls the selectable text off every page, and marks it with page numbers. Your questions, together with that extracted text, go to an AI service that answers from the document's contents. Only the text is shared for that purpose; the original file is never uploaded.
The extracted text stays in your browser and is used for the conversation. When you start a new PDF, the previous document's text is cleared, so each session stays focused on a single file.
There is no account and no setup. Drag a PDF onto the page, wait a moment while the text loads, and a message confirms how many pages were read. You can upload documents up to 20 MB.
The main mode is Q&A: type anything and the assistant answers from the document, and you can ask follow-ups to narrow things down. For a faster read, one-click modes summarize the whole document, simplify dense passages, or translate the content into Urdu. These shortcuts are handy when you want the gist of a long report without reading every page.
A long agreement or policy document becomes much easier to work with when you can ask targeted questions instead of hunting through paragraphs. Students use it to quiz themselves on a paper, reviewers use it to check claims in a proposal, and professionals use it to locate clauses buried deep in a contract.
Some PDFs, especially scans, contain no selectable text at all. When that happens the tool tells you and offers a one-click AI OCR option. The pages are rendered as images and read with optical character recognition, after which you can ask questions normally. It takes a bit longer than plain text extraction, but it brings image-based files into the same workflow.
Text-based documents produce the smoothest experience: research papers, legal agreements, manuals, reports, and books. Handwritten notes or very low-quality scans may not read reliably, even with OCR. If a file mixes text and images, the readable portion is what the assistant works from, so treat the answers as a fast starting point rather than a complete analysis.
Free users get three AI questions per day, no signup required. Premium subscribers get unlimited questions, larger document support, and priority processing. The daily allowance resets on its own, and the chat history stays in your browser session.
If you hit the free limit, the tool lets you know and offers an upgrade path; the three-question allowance is still generous enough for quick lookups on a typical day. For heavier research, answering a handful of questions per page as you read keeps the conversation tight and the answers pointed.
Pro tip
Ask specific questions for the most reliable answers. Instead of "tell me about the report", try "what was the budget for March?" and follow up if you need the supporting detail.