Freemium

Lumin

Document workflow platform for creating, editing and signing PDFs and agreements, with Lumin AI for prompt-based contract drafting, clause review and summaries, and AgreementGen generators for NDAs, leases and employment contracts.

4.1 Productivity
4.1 Very good 4.1
Free plan and 7-day trials on paid plans Free plan is limited to 3 documents
Reviewed by Challenging Voice Editorial · Updated Oct 2026 How we rate
PricingFrom $9/mo
Free planYes
CompanyLumin PDF Corporation
PlatformsAndroid, iOS, Mac, Web, Windows
CategoryProductivity
Last reviewedOct 2026
Ask AI about Lumin ChatGPT Claude Perplexity

Overview

Lumin is a cloud document platform from Lumin PDF Corporation in San Francisco. It combines a PDF editor, eSignatures and agreement tools, with apps for web, iOS, Android, Mac and Windows and offline support on mobile. It connects to Google Workspace, Slack, OneDrive, Dropbox, Salesforce and HubSpot, and has an eSign API. The site says more than 63 million professionals use it.

Lumin AI works in three modes named on its page: Generate, Analyze and Edit. It turns a prompt into a contract template, answers questions about a document, pulls out clauses and key terms, summarizes long reports and proposals, and refines wording. AgreementGen is the drafting product, with generators for NDAs, leases, employment contracts, operating agreements and terms and conditions. The Lumin AI page also invites users to join a pilot for features before launch, and it names no underlying model.

On the US pricing page the Free plan costs $0 and annotates up to 3 documents. Starter is $9 a month for 10 documents, Pro is $19 a month per team for 200 documents and 5 agreements, and Business is $99 a month per team with access controls and connectors. Enterprise is quoted by sales, and paid plans have a 7-day free trial.

Key features

  • Prompt-based contract and agreement generation
  • Document question answering with clause and key term extraction
  • AI PDF summarizer and Chat with PDF
  • AgreementGen generators for NDAs, leases and employment contracts
  • PDF editing and eSignatures with Google Workspace integration

Screenshots & demo

Lumin screenshot 1

Pricing

Lumin has a free plan, and paid plans start at $9/mo.

  • Pricing modelFreemium
  • Starting priceFrom $9/mo
  • Free planYes
Visit Lumin

Pricing is provided as a guide. Check the official site for the latest plans.

Is Lumin expensive?

Lumin starts at $9, which is right at the Productivity median of $10 a month across the 196 priced tools we list in that category.

The cheapest paid option in Productivity starts at $0.29 and the most expensive at $165.

70% of Productivity tools in the directory offer a free tier, and this is one of them.

Compared against every priced listing in Productivity, recalculated as the catalogue changes. Method and the full market breakdown are in our AI tool pricing study.

Pros & cons

Pros

  • Free plan and 7-day trials on paid plans
  • Editing, AI drafting and signing sit in one platform
  • Apps for web, desktop and mobile

Cons

  • Free plan is limited to 3 documents
  • Pro allows 5 agreements a month
  • The Lumin AI page names no model and points to a pilot for new features

How it compares

ToolRatingFreeFromBest known for
Lumin (this tool)4.1Yes$9/moPrompt-based contract and agreement generation
The Drive AI3.8Yes$16.67/moAI file agent that creates, organizes, renames and searches files in plain English
PandaDoc3.8No—AI Assistant – document summarization and Q&A over agreement terms
PDNob3.8Yes$65/moFull PDF editing, conversion and annotation toolkit

Alternatives to Lumin

4 tools matched to Lumin on what they do, their category and their price.

PandaDoc

3.8

AI Assistant summarizes contracts and answers questions about terms or deadlines, while predictive analytics flags when a prospect is most likely to sign.

Contact for Pricing Productivity

Frequently asked questions

What is Lumin?
Lumin is a cloud document platform from Lumin PDF Corporation in San Francisco.
Is Lumin free?
Yes, Lumin offers a free plan. Paid plans unlock more features and higher usage limits, starting at $9/month.
How much does Lumin cost?
Lumin starts at $9 per month. See the pricing plans above for full details.
What are the best Lumin alternatives?
The closest matches in the directory are The Drive AI, PandaDoc, and PDNob, compared side by side above.

Reviews

4.1 Editorial rating No reviews yet

Write a review

More tools like Lumin

Swifly

3.6

AI voice keyboard that turns speech into polished writing in any app on Mac, Windows and iOS, with Android planned, using press-and-hold dictation.

Contact for Pricing Productivity

ChattyPDF

3.2

Ask a document a question, jump straight to the supporting page – table extraction, term linking, and auto-generated table of contents, but it always tells you to verify against the source.

Contact for Pricing Productivity