1PDF vs PDF24
Both get the job done. The difference is how: PDF24 processes your files on its servers, while all 74 1PDF tools run locally in your browser — your files never leave your device.
Side-by-side comparison
| Feature | 1PDF | PDF24 |
|---|---|---|
| Price | Free — every tool, unlimited use. Optional Pro ($3.99/mo or $29.99/yr) just removes ads | Completely free — ad-funded for 20+ years |
| Free limits | None — no daily caps, no watermarks, no queues, no sign-up | No paywall — the whole suite is free |
| Files uploaded to server | Never — your files stay on your device | Yes — processed on their servers |
| Local processing | Yes — 100% local processing in your browser | No |
| Ads | Light ads on the free tier; removed entirely with Pro | Yes — restrained ads keep the service free |
| No account needed | Yes — every tool works with no sign-up | No account needed |
| File deletion policy | Nothing to delete — we never receive your files | Processed on PDF24 servers; retention described in their FAQ |
| Open about privacy | Privacy is the architecture, not just a policy page | Yes — open about the ad-funded model |
Competitor details summarized from their official pricing and FAQ pages as reviewed in July 2026. Check PDF24's site for the latest.
Where PDF24 is better
Credit where it's due — PDF24 genuinely beats us on a few things:
- ★Everything is completely free — no Pro tier, no upsell, funded by ads for over 20 years.
- ★A remarkably long track record: two decades of continuous operation prove the model works.
- ★No account required — just like 1PDF.
Where 1PDF wins
- ✓Local processing: PDF24 uploads files to its servers, while 1PDF never does.
- ✓A modern, consistently designed interface across all 79 tools.
- ✓No uploads also means no waiting on server queues or slow connections for large files.
Try the PDF tools that never upload your files
74 free tools. No sign-up, no watermarks, no queues — and nothing ever leaves your device.
Try 1PDF freeFrequently asked questions
Both 1PDF and PDF24 are free — what is the difference?
Privacy. PDF24 processes files on its servers and funds itself with ads. 1PDF processes everything locally in your browser, so your files never leave your device. Both are free; only one is upload-free.
Is PDF24 safe to use?
PDF24 has operated for over 20 years and is transparent about its ad-funded model, so it is a legitimate choice if you are comfortable uploading documents. If you would rather not upload at all, that is exactly why 1PDF exists.
Why does 1PDF show ads if files are processed locally?
Local processing keeps our server costs near zero, and light ads cover what remains. PDF24 proved an ad-funded PDF site can survive for 20+ years — we follow the same restrained model, with an optional Pro tier that removes ads.