PDFWix vs Smallpdf in 2026 — compare free-tier task limits, privacy, tool count and pricing. Smallpdf caps free users at 2 tasks per hour; PDFWix has no daily limit.
PDFWix vs Smallpdf — overview
Smallpdf is a Swiss-based PDF suite, ISO 27001 certified, with one of the cleanest interfaces in the category and strong enterprise/team features. PDFWix is a smaller, free-forever web app whose biggest selling point is browser-side processing and zero free-tier caps. Most casual users hit Smallpdf's two-tasks-per-day wall on free; that's where PDFWix tends to win.
Key differences
Tool count: PDFWix — 28; Smallpdf — 21
Browser-side processing: PDFWix — Default for most tools; Smallpdf — Server-side for all tools
ISO 27001 certified: PDFWix — No (not yet); Smallpdf — Yes
Team plans: PDFWix — No; Smallpdf — Yes
Developer API: PDFWix — Yes; Smallpdf — Yes
Pro price: PDFWix — $0; Smallpdf — ~$9/mo Pro
When to use PDFWix
You hit the 2-document daily cap and don't want to subscribe.
You handle sensitive documents and prefer browser-side processing where possible.
You want a no-friction web tool for occasional use.
When Smallpdf is better
You're in a regulated org that requires an ISO 27001 vendor.
You need their team workspace and seat-based admin.
You're happy paying for the Pro tier and want polished mobile apps.
Verdict
Smallpdf is the better choice for a regulated enterprise that wants ISO certification and team admin. PDFWix is the better choice for individuals and small teams who refuse to be capped at two documents a day.
Frequently asked questions
Does Smallpdf really limit you to 2 documents per day?
Yes — that's their published free-tier limit. After that you're prompted to upgrade. PDFWix has no such cap.
Is Smallpdf safer because it's ISO 27001 certified?
ISO 27001 is a meaningful certification of their security management. PDFWix isn't certified yet, but most of our tools never upload your file in the first place — different model, different tradeoff.