PDF tools / Compare
Lumin vs UPDF
Both do 1 of the same PDF tools task. Below is what each says about its own limits and pricing, and how each ranks on signals we can measure or quote.
Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.
A
Lumin
Automate agreements from draft to signature through one secure platform. Document creation, editing, and eSignatures trusted by 140+ million users worldwide.
Signals score: 3.8 / 5 · not a hands-on test
Visit www.luminpdf.comB
UPDF
Create, edit, annotate, convert, translate, and sign PDFs with UPDF. Use AI to understand documents faster and work seamlessly across Windows, Mac, iOS, Android, and the web.
Signals score: 3.9 / 5 · not a hands-on test
Visit updf.comPricing, limits and privacy
- Free tier
- A: Free plan at $0: basic PDF editing, basic eSignatures, annotation of up to 3 docs, plus mobile and desktop apps. The limit is 3 docs per month; a doc counts once you share, download, print or sync it.
- B: Free version adds a trial watermark when saving. Free limits listed: 1 GB cloud storage with 10 MB per file, 2 file conversions per day, 5 OCR uses, batch processing of 2 files, AI assistant with 5 PDFs and 100 questions. The page contradicts itself on some limits.
- Paid plan
- A: In USD: Starter from $9/month (10 docs per month); Pro $19/month per team (200 docs per month team-wide); Business $99/month per team; Enterprise is custom. All plans have a 7-day free trial. The page does not explain annual versus monthly billing and does not mention country-based pricing.
- B: UPDF Pro is a yearly auto-renewing plan or a one-time lifetime purchase, covering 4 devices. AI Assistant is yearly, quarterly or monthly. 30-day money-back guarantee. Prices for these plans are Not stated in the page text I could read.
- Signup
- A: Not stated directly. The Free plan and trials link to a sign-up page.
- B: Not stated. A pop-up says to sign in to get free access to some features, but it is unclear whether an account is needed for every use.
- Watermark
- A: Not stated.
- B: Yes. The free version adds a trial watermark when saving edited, annotated, protected or organized documents.
- Where files go
- A: Per the privacy policy, all Lumin servers are in the United States. Files are processed for tasks like OCR and compression, including with OpenAI and Google Gemini integrations. File copies are kept only if you upload, convert or share them. Account deletion removes files within 30 days of request, though another section says immediately.
- B: UPDF Cloud and AI features upload documents to UPDF Cloud, stored in data centers in the user's region. AI-processed content is said not to be used to train general-purpose AI models. Personal data is kept while the account is active. No retention period is given for uploaded documents. The policy does not say whether desktop editing is local only.
From each tool's own pages, checked 2026-11-01. Prices and limits change; check the tool before you rely on them. Sources are listed on each tool's page.
Compare on a task
Neither tool has been hands-on tested on these tasks yet, and we do not guess. Open a task to see both ranked with every other tool.
- Only Lumin: Sign PDF
- Only UPDF: OCR PDF
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