Chat with your PDF documents
like never before

ChatPDF uses advanced natural language processing to understand the content of your uploaded PDF documents. Our AI analyzes the text, structure, and context to create a semantic representation of your PDF. When you chat with your PDF, our AI retrieves relevant information directly from your document and generates natural, conversational responses based on the content.

Absolutely. At ChatPDF, we prioritize your privacy and data security. Your PDFs are encrypted during transmission and storage. We don't store your document content permanently - files are only processed for the duration of your session and automatically deleted afterward. ChatPDF never shares, sells, or uses your document data for training our models.

ChatPDF works with virtually all text-based PDFs including research papers, legal documents, financial reports, technical manuals, educational materials, and business contracts. The system performs best with clear, text-based content, though it can also handle PDFs with tables and simple diagrams. Scanned PDFs with OCR text are supported as well.

ChatPDF generates highly accurate answers based directly on the content in your documents. The system is designed to retrieve and present information that exists in your PDF rather than making up answers. For complex technical documents, accuracy depends on the clarity of your questions and the document's content quality.

Yes, currently ChatPDF supports PDFs up to 100MB in size. For optimal performance, we recommend documents under 50MB. Very large documents (500+ pages) may be processed in chunks, but our system handles most standard business and academic documents with ease.

Our standard feature allows you to chat with one PDF at a time. However, our premium subscription lets you analyze multiple related documents together, enabling cross-document queries and comprehensive insights across your entire document library.

Yes! ChatPDF supports multiple languages including Spanish, French, German, Italian, Portuguese, Chinese, Japanese, and many others. Our AI can understand and respond to questions in the same language as your document, making it a truly global solution for chatting with your PDFs.

Unlike Ctrl+F which only finds exact text matches, ChatPDF understands context and semantics in your documents. You can ask natural questions and get comprehensive answers that synthesize information from various parts of your PDF. ChatPDF can summarize sections, explain concepts, compare different parts of your document, and provide insights that simple keyword searching can't match.

Absolutely! ChatPDF is particularly popular among researchers, students, and academics. It can help extract methodologies, explain complex sections, summarize findings, and answer specific questions about research papers. Many users find ChatPDF invaluable for literature reviews and staying updated on research in their field.

While we offer a limited free trial without registration, creating an account unlocks the full potential of ChatPDF. Registered users benefit from document history, saved conversations, higher upload limits, advanced features, and customer support. We offer both free and premium account options to suit different needs.