How local processing works
Traditional PDF websites upload your file to their servers, process it there, then send the result back — which means your document (it could be a contract, an ID, or a bank statement) travels through another company's machines and is stored there temporarily.
Doctor PDF works completely differently. Using modern browser technology (JavaScript and WebAssembly), every operation — merging, compressing, signing, encrypting, OCR and more — runs directly inside your browser. Your file is never sent anywhere and never touches a server. You can even disconnect from the internet after the page loads, and the tool keeps working.
Check it yourself
You do not have to take our word for it. Open your browser's developer tools (press F12), choose the Network tab, then use any tool on this site. You will see the page and its code libraries being downloaded — and no request that sends your document anywhere. The only thing that goes out is ordinary visit statistics (which page was opened, which tool was used), never the file, its name, or what is inside it.
Privacy comparison with competitors
| Criterion | Doctor PDF | iLovePDF | Smallpdf | Sejda |
|---|---|---|---|---|
| Uploads files to a server | Never ❌ | Uploads | Uploads | Uploads |
| Where processing happens | Your browser | Their servers | Their servers | Their servers |
| File storage | Never stored | Deleted after 2h | Deleted after a while | Deleted after 2h |
| Arabic (RTL) support | Full ✅ | Limited | Partial | Partial |
| Usage limits | None ✅ | Limits on files per task | Limits on the free plan | Hourly and page limits |
| Account or card for full use | No ✅ | Subscription for all features | Subscription for all features | Subscription for all features |
| Ads | None ✅ | Yes | — | — |
| Works offline | Yes ✅ | No | No | No |
| Price | Completely free, no subscription | Free with ads, or $4–7 a month | Free with limits, or a subscription | Free with limits, or $7.50 a month |
Competitor prices and limits are taken from each site's own pricing page — October 2026. They may change.
Why privacy matters in PDF tools
The files we handle every day are often our most sensitive documents: employment contracts, bank statements, ID and passport scans, medical reports, and legal paperwork. When you upload these files to a third-party server, you are trusting that company to protect them and never misuse them or get breached.
With Doctor PDF, that worry simply does not exist — because the file never leaves your device. There is no server to breach, no stored copy somewhere online, and no complicated privacy policy to read. Your privacy is guaranteed by design, not just promised.
Security FAQ
Are my files uploaded when I use Doctor PDF?
No. All processing happens inside your browser, and your file is never uploaded to any server.
Is Doctor PDF safer than iLovePDF and Smallpdf?
For privacy, yes — those sites upload your files to their servers for processing, while Doctor PDF processes everything locally on your device with no upload.
Does Doctor PDF keep a copy of my documents?
No copy exists at all. We never see or store your files, because they never reach us in the first place.
Does it work offline?
Yes. After the tool page loads you can disconnect from the internet and processing will keep working on your device.
Do I need an account or sign-up?
No. No account, no sign-up, no email — just open the tool and use it, free.