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SecPDF.

PDF tools, printed differently.

SecPDF started with a simple discomfort: why should you upload a contract, a medical report or an invoice to a stranger's server just to rotate a page? Every tool here runs entirely in your browser — the code comes to your files, not the other way around.

How local processing works

When you open a tool, your browser downloads a small processing engine (WebAssembly and JavaScript). Your file is opened directly from your disk into your browser's memory, processed there, and saved back to your device. There is no upload bar because there is no upload.

Don't trust — verify

Open your browser's developer tools, switch to the network tab and use any tool. You will see the engine being downloaded once — and no file data leaving your machine. You can even disconnect from the internet after the page has loaded: everything keeps working.