PDFONGO – Protect PDF with Password

Secure your PDFs by adding password protection using PDFONGO.

Protect your sensitive PDF files with just one click. PDFONGO – Protect PDF lets you easily add password protection to any PDF file directly from your browser. No installations, no complicated tools — just upload, secure, and download. 🔐 Key Features ✔ Password-protect PDF files ✔ Fast and secure processing ✔ Works with large PDFs ✔ Powered by PDFONGO API ✔ User-controlled API keys 🚀 How It Works Open the PDFONGO extension Select your PDF file Enter a password Click Protect PDF Download your secured file instantly 🔑 API Key Required This extension uses the PDFONGO API. You’ll need an API key to use the extension. 👉 Get your API key or documentation here: https://www.pdfongo.com/api/index.php