The picture files that are usually produced usually use the RGB mode, but when printing, you need to use the CMYK mode. The function of proof color is to quickly check the color of RGB files in CMYK mode. The verification and usage methods are as follows:
Required materials: PS.
1. First open the PS software and press Ctrl N to create a new RGB color canvas.
2. Select a color and Alt Del fill it into a solid color layer.
3. Right-click the solid color layer and click "Copy Layer" in the menu.
4. Set the copy target to "New" and click "OK".
5. Drag two solid-color canvases into a small window, click on one of the canvases, click "View", and click "Proofing Color" in the drop-down menu.
6. At this time, the CMYK mode will be displayed after the name of the canvas, and it can be seen that after the solid color canvas on the left is changed to CMYK mode color, there is a big color difference from the canvas of the same color on the right.