Is 300 ppi good for printing?
Simply so, is 300 ppi high resolution?
But a request for a high resolution photo generally means a high ppi (usually 300 or greater) when printed. The benchmark of 300 ppi being "high resolution" was made many years ago - it's not as true now as it was in the past (I would argue that 200 ppi is often sufficient for most printing).
Additionally, what PPI should I use for printing?
Probably the minimum value for reasonable print quality is 180 ppi. For a better image you can go to 240ppi and for the best quality you may have to go to 300ppi. An important factor in print quality is the number of pixels per inch (ppi) used to make the print.
The difference between 72 dpi and 300 dpi. Your computer monitor shows images at a web resolution of 72 dpi (that's 72 dots per inch). A common photograph print resolution is 300 dpi (that's 300 dots per inch).