ChatPDF

ChatPDF is a free-to-start, AI-powered PDF analyst that lets you chat with any PDF, DOCX, PPTX or TXT file in seconds. Advanced embeddings and GPT-4o routing deliver precise answers with citations, while SOC2-grade security keeps data safe. From students to VCs, users cut research time by 70 %, making it the fastest way to extract knowledge from documents.

Zero-Setup Upload & Instant Answers

Drag-and-drop any PDF, DOCX, PPTX, TXT, or Markdown file and start chatting within seconds. The interface auto-detects language, so a Korean research paper can be queried in Spanish without manual configuration.

Multi-Document Folders

Create folders that behave like knowledge bases. Ask questions such as “Compare the revenue growth assumptions across these three pitch decks” and receive side-by-side insights with footnotes pointing to each source slide.

Granular Sharing & Access Control

Generate expiring, password-protected share links for sensitive M&A documents. Unlike generic file-sharing services, recipients can interact with the chat layer without creating accounts, yet owners retain audit logs of every question asked.