ChatGPT App for PDFs

Lumin documents, inside ChatGPT.

Review, organize, fill, and create PDFs without leaving the conversation. Each tool returns structured results and can open a focused document workspace.

MCP endpoint Preview workspace

Document workspace

Contract-review.pdf

Ready

Issue found

Missing effective date in section 2.1.

Check

Upload a PDF, review detected issues, jump to the source page, and mark findings resolved.

Organize

Extract, rotate, reorder, delete, or merge pages into a new PDF copy without overwriting the original.

Forms

Detect fillable fields, export values, and create filled PDF copies from explicit user-provided data.

Create

Turn a prompt into a formatted PDF and inspect the generated document before saving.