Open PS software and press AIt+ctrl+shift+O to import pictures, and press ctrl+j to copy one layer. Use the quick selection tool to select characters, and then click Edit and Copy. Press ctrl+n to create a new layer or import another picture. Click Edit and Paste, press ctrl+T Free Transform Tool to drop down the graph with the mouse, press ENTER, and use Eraser Tool to erase unnecessary places. Press ctrl+shift+S to save the picture in jpg format. Ok, ok, ok!