Take an inch photo as an example, the specification is 2.5*3.5cm? 8 sheets, 300 dpi

First, the new 2.5*3.5cm? 300dpi？ The size of the white canvas, copy the avatar and resize it;

After confirmation, open the canvas size, check the relative, and set the width and height to 0. 1cm.

The effect is as shown in the figure: click Edit again-define the pattern, name it and confirm it.

Then create a new canvas with a width of 10.4 and a height of 7.2.

Click the Create Fill Layer button-Pattern in the lower right corner of the software, select the previous pattern, 100%, and confirm to save.