Your files never leave your browser
PubOpener is built so that your .pub file is opened and converted entirely on your device. There is no upload step, no account, and the server has no endpoint that can receive a file.
Verify it yourself
- Open your browser’s developer tools (F12) and select the Network tab.
- Convert a .pub file.
- You will see no request that carries your file — only the page’s own assets.
What we do collect
Anonymous, aggregate usage counts (e.g. “a conversion to PDF happened”) with no file names, no file contents, and no tracking cookies. Ads, when shown, are contextual — matched to the page, not to you.
No upload · no account · no tracking cookies.