Verified October 2026. Competitor limits change — we re-check quarterly.
Smallpdf is a good product with a real business model: limited free tasks that push you toward Pro, with your files processed on their servers. Toolzum takes the opposite trade: processing happens locally in your browser (files never leave your device), and the free tier is quota-based and disclosed up front. Neither is "free unlimited" — here is exactly what each side allows.
| Capability | Smallpdf | Toolzum |
|---|---|---|
| Free use | A couple of tasks per day, then paywall | 3 downloads/day anonymous, 5 signed-in; 2/day on Pro tools |
| Where files go | Uploaded to Smallpdf servers for processing | Processed locally in your browser; never uploaded (local tools) |
| Merge PDFs | Free tier capped, files leave device | Unlimited merging locally; save counts on free quota |
| Compress PDFs | Capped free tasks | Local compression with quality control |
| Edit PDFs | Mostly Pro features | Full editor free: text, sign, OCR, AI actions |
| Price to remove limits | Pro subscription (~$100+/yr) | Pro $9.99/mo with 200 AI credits/mo |
| Signup to start | Account required for most flows | Anonymous use allowed; sign in free for more |
If you need advanced OCR pipelines, e-sign compliance workflows, or desktop batch automation, Smallpdf's paid tier (or Adobe) is the better tool — honesty earns links, and we'd rather keep the users we genuinely serve: free, private, browser-local PDF work.