Trust
Why you can check us, rather than trust us
Every PDF site says your files are safe. Here is what TryToPDF actually guarantees, what enforces each guarantee, and where the edges are.
Enforced by your browser
These are not promises we keep. They are constraints your browser applies to us.
| Mechanism | What it guarantees |
|---|---|
| Content-Security-Policy | Connections are restricted to this origin. A cross-origin upload is refused by the browser. |
| Processing in a Web Worker | Document bytes live in a thread that performs no network requests. |
| No third-party scripts | No external party can observe what you do here. There are none to load. |
| Self-hosted fonts and engines | Nothing is fetched from a CDN, so no third party sees a request either. |
| No accounts, no storage | There is no database holding documents, because none are ever received. |
Where the guarantee stops
We serve the code that runs on your device
Local processing means your file never reaches us. It does not mean you are running code no one controls — your browser fetches this application from our servers. That is true of every website, and it is why the checks on the privacy page matter: they verify the code you actually received.
Anonymous usage events are sent, after the fact
Which tool ran, roughly how big the file was, how long it took, whether it worked. Never during processing, never containing anything from your document. The full list is on the privacy page.
Recent documents are kept on your device
So a refresh does not lose your work and a result can carry into the next tool, recent files are stored in your browser's own storage. They are never transmitted, they expire after 24 hours, and the tools page has both a clear and an off switch. It is the only part of TryToPDF that writes your documents to disk.
Safari clears saved data after seven days
Safari removes storage that a website has written — including the offline cache and recent files — after seven days without a visit, unless the site has been added to the Home Screen. It applies to every website, not just this one, and means offline support lapses for occasional Safari visitors until they next load the site with a connection.
Your browser and extensions are outside our control
An extension with permission to read pages can read this one. Nothing a website does can prevent that.
PDF permissions are advisory
When you restrict printing or copying, that restriction is recorded in the document and honoured by mainstream readers. The PDF format cannot enforce it. If a document must not be read, use a password.
What TryToPDF is today
A free, ad-free set of PDF tools with no account and no usage limits. Five tools are built and usable; the rest of the Phase 1 set is listed on the tools page and marked as not yet available, rather than linked before it exists.
Tools that require a network connection would be labelled as such. Currently none do.