Your files are yours.

Most "free online PDF tools" work the same quiet way. You hand over your document, and they take it to their server to do the work. A contract. A medical record. A tax return. Uploaded to a machine you'll never see, governed by a privacy policy you have to take on faith. KeptPDF was built on the opposite premise. Your file never leaves your device.

Why this exists

Privacy shouldn't be the upsell. The moment a privileged exhibit, a patient's chart, or a client's Social Security number lands on someone else's server, you've lost control of it. No policy written after the fact fully gives that back. So we made a different choice. The safest place to work on a sensitive document is the place it already lives: your own browser.

How it's different

Every KeptPDF tool runs locally, right inside the page. No upload. No processing queue. No server-side copy to breach, subpoena, or "retain for quality purposes." And you don't have to take that on trust. You can watch it happen. Open your browser's developer tools, switch to the Network tab, and run any tool. Your file is never part of a single request. Verify it yourself

Who's behind it

I'm John, and I built KeptPDF. I spent more than a decade building software for other people, most of it as a product manager. This one is personal, not professional. A family member got seriously ill, and we spent most of our days at the hospital trying to make sense of records, notes, and lab results no one ever explained to us in plain language. Like a lot of people now, we leaned on AI tools to help us understand them.

There was a catch. Before you can paste a medical record into an AI, you have to strip out the Social Security numbers, the names, the diagnoses first. I went looking for something that could do that from my phone, because a phone was usually all I had at the bedside. Most tools wanted to upload the whole file to a server first. And the ones that promised to "auto-redact" were quietly sending the document's text to an online AI to do the work. The exact thing I was trying to avoid.

So I built the tool I needed. One that finds and removes sensitive information right on your device, runs on the phone in your pocket, keeps nothing, and lets you prove it never left. If it's safe enough for my own family's records, it's safe enough for your clients.

John Whitworth, founder of KeptPDF

What we believe

KeptPDF has a narrow mission: give the people who handle sensitive documents every day a set of tools they don't have to think twice about.

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