Your files never leave this device
Most PDF sites upload your documents to their servers. strictpdf does the work inside your browser instead — and you can verify that yourself.
See for yourself
- Open your browser's developer tools (press F12, or right-click the page and pick Inspect).
- Switch to the Network tab.
- Merge or convert some files with any strictpdf tool.
- Watch the list: no upload requests appear. Your files stay right here.
How that works
The processing engine is loaded into your browser as code and runs on your own device. The server only hands out this website's pages — it never receives a byte of your documents. Once a tool page has loaded, it even works with the internet turned off.
What we never do
- Upload your files anywhere — there is no server that could receive them.
- Attach file contents to error reports or logs.
- Let advertising scripts touch your files — ads live in isolated frames with no access to the page's data.