Frequently asked questions

• Is the AI PDF Summarizer free to use?

  Yes, Lumin’s AI PDF Summarizer is free to use. You can upload your documents and generate clear, concise summaries at no cost.

• How do I use Lumin?

  The Lumin app works on your browser, or you can download our desktop app and keep Lumin handy on your computer. We’ve also got a mobile and tablet app which includes Lumin’s most popular features.

• How does the PDF summarizer AI work?

  Our AI PDF summarizer uses advanced artificial intelligence to analyze your document, identify key points, and create a concise summary. Simply upload your PDF, choose your preferred summary length, and let our AI create a clear, accurate summary within seconds.
  
  Keeping your data safe and private while using our AI-powered products is our priority. Learn more about security at Lumin or read our AI ethics statement.

• Can I use the summarizer on mobile devices?

  Yes! Our AI PDF summarizer works on all devices. Access through your mobile browser or our mobile app to summarize documents on the go.

• Can I adjust or refine the summary after generating it?

  Yes, you can easily regenerate new versions of your summary until you get the result you want. Lumin gives you flexibility to refine and improve your summaries, helping you find the version that best fits your needs.

• Can I summarize password-protected PDFs?

  Yes, you can upload and summarize password-protected files with ease. Simply enter your password when prompted, and the AI will securely process your document without storing any sensitive data. 

• Does it work with scanned PDFs?

  Yes, the AI PDF Summarizer includes OCR (Optical Character Recognition) technology that converts scanned or image-based PDFs into text before processing. This ensures accurate summaries even for handwritten notes, printed documents, or mixed-format files. 
  
  It’s a convenient solution for researchers, students, and professionals who work with various document types.

• Can it handle large files?

  Yes, Lumin’s AI PDF Summarizer supports PDFs up to 20 MB, 15 pages, or 48,000 characters in size. 
  
  If your document exceeds these limits, you can process it in sections or upgrade to a premium plan for extended capacity. 

• Is my data secure?

  Your security and privacy are top priorities at Lumin. All files are encrypted with 256-bit AES protection during upload, processing, and deletion. Documents are automatically removed after use, and Lumin’s SOC 2 Type 2 certification guarantees enterprise-level data safety for every user.

• How accurate are the summaries?

  Lumin’s AI delivers highly accurate summaries by identifying key points, arguments, and themes in your PDF. It uses advanced natural language processing to retain essential meaning while removing unnecessary details.