This guide provides step-by-step instructions for installing wkhtmltopdf with the patched QT on Ubuntu and CentOS 8.The patched QT version of wkhtmltopdf offers better compatibility and more features compared to the stock version.For Ubuntu, update the package list, install the required xfonts-75dpi package, download the wkhtmltopdf package, and then install it.For CentOS 8, directly install the wkhtmltopdf package using the provided link.