A PDF24 alternative that never uploads your PDF
PDF24's signer is genuinely free with no task limits, but by its own description the app "runs on our servers in the cloud", with files deleted after one hour and servers located in Germany. Sign Simplified is also free, and does the signing in your browser instead: the document is never uploaded at all.
Details about PDF24 come from its own public pages. Last verified: July 17, 2026.
PDF24 vs. Sign Simplified for signing a PDF
| Aspect | PDF24 | Sign Simplified |
|---|---|---|
| Where your file is processed | Their page: the app "runs on our servers in the cloud"; files deleted after one hour; servers in Germany | Never uploaded, processed entirely in your browser |
| Account needed to self-sign | No, "no registration required" | No |
| Free-tier limits | None stated, free, no limits | Unlimited self-signing, free |
| Privacy is verifiable | You trust their one-hour deletion policy | Watch the network tab, or sign offline; a CI test enforces the no-upload rule |
| Desktop option | Free Windows app (PDF24 Creator) | €49 one-time offline Lite app, any platform with a browser |
What PDF24 does well, and when to use it
PDF24 deserves its reputation: the entire toolbox, merge, split, compress, convert, OCR, watermark, sign, is free, without task limits or registration, and it states German-hosted servers with one-hour file deletion. The free Windows desktop app covers offline work. As free PDF suites go, it is the generous one.
The one architectural caveat is stated in its own description: the online sign tool runs on their servers, so your document makes the round trip. Short retention and EU hosting are good properties for a server-side tool, a browser-local tool simply doesn't need them.
Why the no-upload difference matters for signing
Free-and-server-side versus free-and-local: the price is the same, the data path isn't. Sign Simplified opens your PDF with code running in your browser, places your drawn, typed, or photographed signature, and saves the flattened result to your device. No copy exists on any server, German or otherwise, for any retention window.
This is verifiable rather than promised: the DevTools Network tab shows no request carrying your document, the flow works offline once the page is loaded, and an automated network test in our CI fails the build if the free signer ever transmits a file.
Frequently asked questions
- Is PDF24 safe to use?
- PDF24 states SSL transfer, automatic deletion after one hour, and servers located in Germany, solid properties for a server-side tool, and it's free without registration. The remaining consideration is inherent to the model: your document spends time on their infrastructure, on trust.
- Does PDF24 upload my PDF when I sign it?
- For the online sign tool, yes, its own page says the app runs on their servers in the cloud, with files deleted after an hour. PDF24 also offers a free Windows desktop app for local work. Sign Simplified does the local processing in the browser, on any platform.
- When is PDF24 the better choice?
- When you need its breadth, OCR, conversion, compression, watermarking, in one free suite, or a free Windows desktop app. For the specific job of signing confidential documents, a no-upload browser signer removes the server round-trip that even PDF24's generous model requires.
Other alternatives
- A Smallpdf alternative that never uploads your PDF
- An iLovePDF alternative that never uploads your PDF
- A Sejda alternative that never uploads your PDF
- A DocHub alternative with no account, and no upload
- A free DocuSign alternative for signing a PDF yourself