Lumin vs Sejda (2026): which should you pick?

Pick Lumin if

• Fits if a small team edits and signs PDFs together in a browser
• Works for people who need a few signed documents a month at no cost

Look elsewhere if

• Tight if you handle many files, as Free allows 3 documents a month and Starter 10
• Watch out: a document counts as completed when you share, download, print or sync it
• Watch out: extra document blocks are added automatically unless an admin switches it off
• Pricey if you need redaction or Slack and Drive connectors, which need Business at $99 a month per team
• Not for you if you want a desktop program, as there is none

Pick Sejda if

• Fits if you need a week of heavy PDF work and then nothing for months
• Works for Linux users who want a desktop PDF editor

Look elsewhere if

• Skip it if you want to edit on your phone, as there's no app
• Tight if you OCR long scans, as even paid plans stop at 100 pages
• Not for you if you want the desktop app monthly, as only the week pass and annual plan include it
• Watch out: free desktop use is 3 tasks a day, 200 pages and 50MB a file, with OCR up to 10 pages
• Too light for linking to cloud storage or other apps, as no integrations are on record

Lumin

• Plans are capped by completed documents a month: 3 on Free, 10 on Starter and 200 on Pro and Business.
• A document counts as completed when you share, download, print or sync it, and extra blocks are added automatically unless an admin turns that off.
• Redaction, domain control and connectors such as Slack and Drive sit on Business, at $99 a month per team.
• The pricing page shows monthly figures only and does not say whether yearly billing is cheaper.

Sejda

• Free use is capped at 3 tasks a day on desktop and by pages and hours on the web, with OCR limited to 10 pages.
• The Web plans do not include Sejda Desktop; only the Desktop Week Pass and the Annual plan do.
• There is no monthly plan that includes the desktop app, and no mobile app.
• Even paid plans run OCR on documents of up to 100 pages.

Lumin

PDF text and page editing

Edit text directly, add shapes and images, and merge, split, extract and rearrange pages.

Real-time collaboration

Teammates can edit the same file at once, with comments, tagging and view or edit sharing links. Collaboration is a paid feature.

E-signatures and fillable fields

Sign documents, add fillable fields and check boxes, and send or share forms with customers.

Google Drive sync

Changes can sync back to the original file in Google Drive, and storage can be restricted to one platform on higher plans.

Redaction and scanned-text search

Conceal sensitive content and make scanned PDFs searchable. Redaction is listed on Business and above.

AI tools

Includes a PDF summarizer, chat with a PDF and an AI agreement generator, available through Lumin AI.

Sejda

Edit existing text

Add, edit or move text and change its font, size and style, add links, images and shapes, and annotate, highlight and sign.

Forms

Fill and sign PDF forms, and turn an existing PDF into a fillable form.

Merge, split and organize

Combine files, alternate pages from two documents, split by pages, size, bookmarks or text, and reorder, rotate, crop or delete pages.

Convert and OCR

Converts PDFs to Word, Excel or CSV and images, and HTML or images to PDF, with OCR on scans and table extraction.

Desktop app that works offline

Sejda Desktop installs on Windows, Mac and Linux and processes documents on your computer rather than on Sejda's servers.

Batch work and tool chains

Paid plans process several files at once, and a workflow tool runs a series of tasks on PDFs in one go.

Lumin

• Free$0

  Basic PDF editing and e-signatures, 3 completed docs a month, mobile and desktop apps.

• Starter$9

  per month, starting price; billing basis not shown

  Student plan: 10 docs a month, retained document access, Google integration and signing.

• Pro$19

  per month per team, starting price; billing basis not shown

  200 docs a month team-wide, advanced PDF editing, document collaboration and 5 agreements a month.

• Business$99

  per month per team, starting price; billing basis not shown

  Adds member access control, domain control, sign-in enforcement, connectors, redaction and priority support.

• EnterpriseCustom

  Sold through sales: storage controls, enterprise SSO, Microsoft integration, onboarding and a customer success manager.

Sejda

• Desktop+Web Free$0

  No signup needed; page, hourly and file-size limits and some tool-specific limits.

• Web Week Pass$5

  per user for 7 days, paid once, with no renewal

  Seven days of unlimited Sejda Web, then back to free; no desktop app.

• Web Monthly$7.50

  per user / month

  Unlimited Sejda Web with files up to 500MB, OCR up to 100 pages and batch processing; no desktop app.

• Desktop Week Pass$7.95

  per user for 7 days, paid once, with no renewal

  Seven days of unlimited Sejda Desktop and Sejda Web.

• Desktop+Web Annual$63

  per user / year

  A year of Sejda Desktop and Sejda Web with no page or hourly limits, renewing yearly.

Lumin

• Nonprofit

  Discounts for not-for-profits

  Lumin states that it offers discounts to non-profit organizations; the amount is not published.

• Education

  Free for K-12 teachers and students

  Lumin says it is committed to keeping the product free for K-12 teachers and students.

Sejda

• Annual discount

  Save 30% with the annual plan

  Sejda's pricing page says the Desktop+Web Annual plan at $63 per user a year saves 30% over the $7.50 monthly web plan.

• Other savings

  Team volume discounts from 2 users

  Sejda gives volume discounts from 2 members, 20% for 10 users on its plans, and up to 60% off on desktop volume licenses.