To print a page as a PDF using Selenium 4, users can leverage the `print` method in combination with `PrintOptions`. The process involves loading a URL into a browser, setting up necessary capabilities and options for Firefox or Chrome, and then utilizing the `print` method to capture the page as a PDF. For Firefox, GeckoDriver 0.30.0 or higher is required, while for Chrome, headless mode must be enabled. The resulting PDF can be saved using Java's `Files.write` method. By using Selenium 4 with these capabilities and options, developers can efficiently create PDFs of web pages for testing and other purposes.