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How to Convert JavaScript-Rendered Web Pages to PDF Using Puppeteer

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Converting modern JavaScript-heavy web pages to PDF is problematic because most tools capture HTML before the browser has finished rendering dynamic content. Tools like wkhtmltopdf and raw HTTP clients lack JavaScript execution, resulting in blank or incomplete PDFs. Puppeteer, which drives a headless Chromium browser, solves this by running the page's JavaScript fully before capturing output. Key settings such as waitUntil: 'networkidle0' and printBackground: true ensure content is fully loaded and styled correctly. Additional techniques like auto-scrolling, waiting for web fonts, and overriding print stylesheets help handle edge cases for accurate PDF output.

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