Use a browser-based tool like Chrome or Edge and choose Print, then Save as PDF
Use a command-line tool like wkhtmltopdf
Use a library in your programming language, such as Puppeteer for JavaScript
Use a library in your programming language, such as WeasyPrint for Python
Use a library in your programming language, such as iText or Flying Saucer for Java
Use an online HTML to PDF converter
Use a PDF service API that accepts HTML input
Ensure the HTML and CSS are valid and complete
Include all required assets such as images, fonts, and stylesheets
Set page size, margins, and orientation before conversion
Generate the PDF and verify the output formatting