# BentoPDF Privacy-first PDF toolkit with 50+ tools. All processing happens client-side in the browser — files never leave your device. ## Usage After starting the add-on, open the web UI via the **Open Web UI** button or navigate to `https://:8443`. No configuration is required to get started. ## Browser Security Warning (Expected) When you first open the add-on, your browser will show a security warning similar to: > **Warning: Potential Security Risk Ahead** — Firefox detected a potential security threat… or in Chrome/Edge: > **Your connection is not private** — NET::ERR_CERT_AUTHORITY_INVALID **This is expected and safe to proceed.** Here is why it happens and what to do: ### Why does this happen? The add-on serves content over HTTPS using a **self-signed TLS certificate** generated locally on your Home Assistant instance. This certificate was not issued by a public Certificate Authority (CA) that browsers trust by default — it was created specifically for your installation. HTTPS is required because the office file conversion feature (Word, Excel, PowerPoint → PDF) uses LibreOffice compiled to WebAssembly, which requires `SharedArrayBuffer`. Browsers only allow `SharedArrayBuffer` on pages served over a secure context. Plain `http://` over a LAN IP does not qualify, but `https://` does — even with a self-signed certificate. ### What to do Accept the warning once in your browser: - **Firefox**: Click **Advanced…** → **Accept the Risk and Continue** - **Chrome / Edge**: Click **Advanced** → **Proceed to … (unsafe)** - **Safari**: Click **Show Details** → **visit this website** You only need to do this once per browser. After accepting, the browser remembers the exception for this add-on. ### Is it actually safe? Yes. The certificate secures the connection between **your browser and your own Home Assistant instance on your local network**. No data leaves your device — all PDF processing is done entirely in the browser. The warning exists only because the certificate was not signed by a global CA, not because anything malicious is happening. ## Configuration | Option | Default | Description | |--------|---------|-------------| | `log_level` | `info` | Log verbosity: `info`, `debug`, `warn`, `error` | ## Support For issues with the add-on packaging, open an issue at [github.com/ToledoEM/BentoPDF_HA_app](https://github.com/ToledoEM/BentoPDF_HA_app). For issues with BentoPDF itself, visit [github.com/alam00000/bentopdf](https://github.com/alam00000/bentopdf).