Upload any PDF — textbook, paper, lecture slides — and ask it anything. Get direct answers with exact page references, in seconds.
Every answer is grounded in your actual PDF — not the internet — with exact page references so you can verify in seconds.
Ask what the main argument is, how the methodology works, and what the findings actually mean — without re-reading the whole thing.
Navigate chapters by question, not by page number. Ask for worked examples, definitions, or comparisons between sections — all cited.
Ask what the most important topics are, where the gaps in your understanding are, and turn any chapter into a practice quiz on the spot.
Upload multiple documents and ask questions across all of them. Compare arguments, trace themes, or spot contradictions — cited by document and page.
From quick definitions to full document analysis — your PDF can answer it all.
Duetoday reads your entire PDF instantly — 5 pages or 500. Every answer comes with an exact page reference so you can verify and dive deeper.
Drag and drop or click to upload. Textbooks, papers, lecture slides, readings — anything works. Up to 50MB.
Duetoday processes every page and builds a complete understanding of the document — in seconds.
Get direct answers with exact page references. Follow-up questions stay in context. Generate flashcards, quizzes, or notes at any point.
Every answer includes the page number it came from — so you can verify or read more context instantly.
Ask follow-up questions, go deeper, change direction — the AI remembers the full conversation.
Ask it to summarise the whole document, a chapter, or a section — bullet points, key arguments, or a short essay.
Ask it to create flashcards or a practice quiz from any part of the PDF — without leaving the chat.
Ask 'what does this say about X?' or 'find all mentions of Y' — it scans the full document and surfaces the answer.
Upload multiple documents and ask questions across all of them — compare arguments, trace themes, spot contradictions.
Any text-based PDF works — textbooks, academic papers, lecture slides, study guides, research reports, legal documents, and more. Scanned image PDFs are automatically processed with OCR so you can still ask questions about them, though accuracy may be slightly lower than digital text.
Duetoday supports PDFs up to 50MB and 500+ pages. Free plan users can upload PDFs up to 20MB. Pro users get the full 50MB limit with no page cap. A typical 400-page university textbook is around 15–20MB.
Yes. Every answer includes the specific page or page range the information came from. You can click any citation chip in the response to jump directly to that page in the built-in PDF viewer — so you can verify answers in seconds.
Duetoday can read PDFs in any language and answer questions in the same language — English, French, Spanish, German, Mandarin, Arabic, Japanese, and many more. You can also ask questions in one language about a document written in another.
Yes. Upload multiple PDFs in a single chat session and ask comparative or cross-document questions. Duetoday will pull from whichever document is most relevant and clearly cite which document and page each piece of information came from.
Yes. At any point in your chat, ask Duetoday to 'generate flashcards from chapter 3' or 'summarise this section as notes' and it will create study materials directly from the relevant part of your PDF — no copy-pasting required.
The free plan includes 5 PDF chat sessions per month. Pro users get unlimited PDF chat with no restrictions. Upgrade anytime from your account settings.
Turn any content into notes, flashcards, quizzes and more — free.