Privacy Model & Policy
KissThePDF was built on a simple technical principle: the most secure way to handle private user data is never to receive it at all.
Privacy Philosophy
Most online document software relies on centralized servers that receive, store, process, and return user files. This model exposes confidential contracts, medical records, financial statements, and personal identity documents to server logs, data leaks, and third-party subprocessors.
KissThePDF eliminates cloud processing entirely. Every tool runs 100% locally inside your web browser environment.
File Data Flow Analysis
When you drag a file into KissThePDF, it is stored temporarily in your device's RAM buffer (`ArrayBuffer`). It is cleared as soon as you close or refresh the browser tab.
Files are NEVER transmitted over the network to any server, database, S3 bucket, or external API endpoint.
Zero Upload Verification
We encourage users, security researchers, and developers to verify our claims:
- Inspect the open-source code on GitHub.
- Monitor the browser's Network tab while processing sensitive documents.
- Use the web application in Offline Mode or Airplane Mode.
Hosting & Infrastructure Transparency
The KissThePDF static web assets (HTML, CSS, compiled JS, WebAssembly binaries) are served over HTTPS via static web hosting providers (e.g. Vercel / GitHub Pages). These static CDN servers host web application assets only—they do not receive, store, or process user document files.
No User Tracking & No Accounts
KissThePDF requires no registration, sign-up, passwords, or personal identity information. There are no tracking scripts or cookies collecting user document contents.
KissThePDF is 100% Free & Open Source
All code runs locally in your browser. Contribute code, report bugs, add new tools, or star the repository to support privacy-first software.