Lumen vs Smallpdf
Smallpdf pioneered browser-based PDF tools but has aggressively pushed users to paid tiers. Lumen keeps generous free access and adds features Smallpdf charges for.
Feature
Lumen
Smallpdf
Free daily use limit
2 edits + 10 welcome credits
2 tasks per hour
Watermarks on output
Never
On some free exports
Files processed
In your browser
Uploaded to their servers
AI Assistant
Pro only
Form autofill profiles
Signature library
24h share links
Max file size (free)
10 MB
Varies by tool
Pro pricing
From $4.17/mo
$12/mo
Pay-per-use option
The bottom line
If you'd rather buy 10 credits and be done than commit to a monthly subscription, Lumen is friendlier on the wallet. Smallpdf still has the broader mobile app footprint if that matters.