It is called VipRiser - an extensible virtual PDF printer
There is already a driver that does that. VipRiser installs a printer that saves to a file. I use it to 'print out' to a file sheet music I buy online. The existing 'Save to PDF' options at the bottom of the printer dialog won't work because the vendor of the music has disabled this function and you must print to a printer.
For the broadest and simplest support for printing to a virtual printer I use VipRiser rather than using PDF services. PDF Services work in some cases but many sites are preventing the use of PDF Services.
