Does iPad Pro first generation have AirPrint?

Hi,

Yes, you can use this model with AirPrint.

See the related article (above). See also an old user guide (https://help.apple.com/ipad/9/#/iPad997d95cd).

The printer must use the AirPrint technology (About AirPrint - Apple Support), and must be connected to the same network as the iPad Pro.

Please note that not all apps support printing.

Yes all iPhones and iPads have AirPrint support.

All you need is an AirPrint printer.