Honest comparison
reader.me vs Smallpdf
Both turn PDFs into other things. The difference is where the work happens — and that single architectural choice cascades into privacy, pricing and offline behaviour.
reader.me
100% in your browser
Open DevTools → Network tab — zero requests leave your machine while a tool is running.
Smallpdf
Uploaded & processed on their servers
Files are uploaded to their servers and deleted "within an hour" per their public policy.
| reader.me | Smallpdf | |
|---|---|---|
| Architecture | Client-side (WebAssembly + PDF.js + pdf-lib) | Uploaded & processed on their servers |
| File retention | None — files never leave the browser | Files are uploaded to their servers and deleted "within an hour" per their public policy. |
| Encryption model | AES-128 (Protect tool); TLS for static assets only — no document data travels over the network | TLS in transit, server-side encryption at rest. Documents are decryptable by their infrastructure during processing. |
| Account required | No account, no sign-up, no telemetry tied to a user | Optional for occasional free use (2 tasks/day on the free tier); required for Pro and Team plans. |
| Offline support | Full PWA — works without network after first visit | Web app, requires connection |
| Free tier | All 32 tools, unlimited use, 50 MB per file. | 2 documents per day on the free web tier; ads and feature-gating. |
| Paid plan | Not offered — there is nothing to upsell when processing is local. | Pro plan with unlimited tasks, larger files, no ads, OCR, e-sign (around $9-12/month). |
| HQ | Madrid, Spain (Color Vivo Internet S.L.) | Zurich, Switzerland (2013) |
Tool parity
13/20 free on bothEvery tool in this table is free on reader.me. On the other tool, some require Premium/Pro — sourced from their public pricing page.
Pick reader.me if…
- • You work with confidential documents (legal, medical, HR).
- • You're in an environment that can't allow uploads (regulated industry, internal compliance).
- • You want to verify the privacy claim yourself (DevTools → Network).
- • You want offline-capable, unlimited free use.
Pick the other tool if…
- • You need server-side features reader.me doesn't ship (e-sign workflows, integrations).
- • You're already inside their team plan with admin tooling.
- • You don't have a modern browser that can run WebAssembly.
- • You want a tool with a longer track record.
Sources
Everything above cites public pages. Verify any claim:
- Smallpdf: Privacy policy →
- Smallpdf: Pricing →
- reader.me: Privacy page →
- reader.me: How it works (technical) →
- reader.me: Security model →
Last reviewed 2026-05-18. Policies may change — if you spot something stale, drop a note to [email protected].
Try reader.me with your next PDF
Open any tool, drop your file. Nothing uploads. No account.