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Lutin

Ask questions about a PDF on your Mac.

Attach a PDF up to 8 MB and ask about a passage or detail. Lutin sends the document to a supported model, so check each answer against the file before using it and reattach the PDF for another question.

Download for macOS
Illustrative example of a question and answer about an attached PDF

Illustrative example · not a product screenshot

launch-brief.pdf PDF · 1.8 MB
What deadline applies to the security review?

Example answer

The security review must be completed by 14 October, before the launch sign-off.

How it works

Attach the PDF. Ask a focused question. Check the answer.

  1. 1. Attach one PDF

    Use the paperclip in the desktop composer to attach a PDF up to 8 MB.

  2. 2. Ask a focused question

    Name the passage, section, decision, or detail you want to understand.

  3. 3. Check the source

    Compare important details with the original PDF before relying on the answer.

Current desktop composer

Make the question as specific as the detail you need.

Lutin desktop composer containing a question about a PDF
The current desktop composer keeps the question explicit. Use the paperclip to attach the PDF, then ask about the passage or detail you need.

Common questions

One PDF, several ways to understand it.

  • Ask about a passage

    Request an explanation of a specific section or phrase.

  • Find a detail

    Ask for a date, requirement, name, or decision in the PDF.

  • Explain a section

    Turn dense wording into a plainer explanation you can verify.

  • Compare two sections

    Ask how two parts of the same PDF differ or relate.

  • Ask another question

    Reattach the PDF and narrow the question when the first answer is too broad.

  • Keep a useful answer

    Turn a result worth keeping into an editable Note.

Know the limits

A document answer, not proof.

Lutin only receives the PDF you attach. It does not automatically browse your files or guarantee complete OCR for image-only pages. A model can miss context or return an incorrect answer, so verify important details against the document.

The same composer also accepts .docx Word documents and .xlsx Excel workbooks up to 8 MB. Legacy .doc and .xls files and PowerPoint presentations are not supported.

See Lutin for macOS Explore Notes & Documents

Questions

Frequently asked questions

How do I attach a PDF?

Use the paperclip in the Lutin desktop composer to choose a PDF. The current attachment limit is 8 MB.

Can I attach more than one PDF at a time?

The current desktop composer accepts one file attachment per request. Reattach the PDF before submitting another question about it.

Can Lutin read scanned PDFs?

Lutin may use bounded page-image fallbacks when PDF text cannot be extracted, but it does not guarantee OCR or complete coverage of scanned or image-only PDFs.

Does Lutin automatically access my documents?

No. Lutin only receives the file you deliberately attach. Opening Lutin does not give it access to your folders or other files.

Does Lutin support Word and Excel files?

Yes. The current composer accepts .docx and .xlsx files up to 8 MB and extracts bounded text for the model. Legacy .doc and .xls files and PowerPoint presentations are not supported.

Are answers about a document guaranteed to be accurate?

No. An answer can miss context or contain a mistake. Check important details, quotations, and page references against the original document.

Lutin for macOS

Bring a PDF and ask a focused question.

Download for macOS