Your size has been reduced by 10 times, so your resolution should be increased by 10 times. If the resolution of 8*20cm is set to 1000 according to the requirements of inkjet printing, then inkjet printing is no problem. Even if you press the upstairs 70dpi, you have to set it to 700 to meet the requirements, but I think Yi Labao is basically watched at close range, so it is more appropriate to set it to 1000- 1200.