On the previous post, the tutorial is almost the same, but this is for CentOS 7.0.
Taken from the site,
wkhtmltopdf is an open source (LGPLv3) command line tools to render HTML into PDF and various image formats using the QT Webkit rendering engine. These run entirely “headless” and do not require a display or display service. While this tool is quite cool to use, you have to install the dependences of the said tool in order to get the stuff working.
And this is how to install
wkhtmltopdf in CentOS 6.5