Probably the best of its kind

I have tested several print plugins. Some of them seemed more attractive at first. But finally, for each site, I have chosen PrintFriendly, and I have even paid a Pro plan for several of my sites.
It works, it renders the content well, and it allows customization to some extent (e.g. including image or not, adding logo if one wants to, etc.). The result is very legible both for print and PDF. And – which is the most important – it selects the content accurately.
Moreover, if one wants to remove some parts of an article, it is possible to do it, provided the webmaster has enabled it in the settings.
The free version works very well too – but I prefer to avoid getting ads, hence my choice of going Pro.