The size of a two-inch photo is 3.5*4.9 cm, so if you create a new image, you can directly create an image with a size of 3.5 * 4.9 cm. Note that the unit is centimeters. If it is a fixed-scale photo image, it is best not to stretch the image. You can adjust the canvas after cutting, and then stretch the photo layer. The image size determines the final image size, and the canvas is only used to increase or decrease the image boundary size.

Extended data:

Some commonly used standard sizes:

1 inch: 2.5*3.5? cm？ Identity photo

2 inch: 3.5*4.9 cm standard 2 inch photo.

Large size 1 inch: 3.3*4.8 cm China passport.

5 inch /3r: 12.7 * 8.9cm The most common photo size.

6 inches /4r: 15.2 * 10.2? cm？ Common photo sizes in the world

7 inches /5r: 17.8 * 12.7 cm magnification

8 inches: 15.2*20.3? cm？ About half of A4 printing paper.

Small 12 inch: 20.3*30.5 cm is about A4 size.

12 inch:? 25.4 * 30.5cm A4 printing paper is 21* 29.7cm.

References:

Photo Size-Baidu Encyclopedia