How to identify whether a photo has been PS?

Methods to identify whether photos have been PS:

1. Right-click the psb picture and select Properties:

2. Select the summary and click Advanced:

3. We see that all the properties of psb are normal:

4. We will use the same method to open the properties of psb 1 to the advanced part of the summary (if there is a default, it will be displayed automatically without clicking the "Advanced" option):

5. We can clearly see that in the attribute summary of psb 1, there is an additional attribute for creating software. By comparison, it is obvious that the picture of psb 1 has been PS-passed.