What software can be used to trim decrees?

There are many retouching softwares, and PS is the most commonly used one. You can easily remove the "decree pattern" by retouching, and there are also mobile phone softwares, such as Meitu Xiu Xiu, PicsArt, Snapseed, etc. Mainly according to the specific situation of the picture you want to retouch, choose the appropriate software to use. There are also many people who use mobile phones to open their faces. The "decree pattern" you mentioned can generally be ignored, and the photos are direct and perfect. There are many retouching software, just choose the one that suits you.