LightPDF Chat with Documents is a GPT-4-powered online assistant that lets you chat with documents in a familiar Q&A format. Instead of scrolling through long files, you upload a document, ask questions, and get answers quickly.
Supported formats
It works with more than just PDFs, including common office and reading formats, plus web content and scans:
- Word, Excel, PowerPoint
- EPUB, TXT
- Web pages via URL
- Scanned documents and images (with built-in OCR)
What you can do
Use it to understand, extract, and navigate information in large files:
- Create short or detailed summaries
- Pull key points and insights
- Find specific passages and references
- Ask follow-up questions for clarification
Access and integrations
LightPDF Chat with Documents runs in the browser and also offers options to use it from tools you already work in:
- Google Chrome extension
- G Suite add-on
Basic features are available for free without registration, so you can upload a file and start chatting right away.

