You can limit the number of colors that your customers are allowed to use to create a design. You can set the Max number of colors that they can use and, if you want, you can also set a limited range of colors available.
Enabling the limit for the number of colors
Go to your Zakeke back-office > Printing Methods > Open a Printing Method or create a new one and enable the "Set a limit for the number of colors customers can use in a design" option.
You'll be required to set the limit and, if you want, create the limited palette (this is optional -- if you do not make it, your customers will be able to pick colors from a color picker).
As an extra option, you can make it that Zakeke generates a print-ready file in PNG for each color in the design instead of a single print-ready file with the full design.
How it works for your customers
Once the feature is activated, your customers will be forced to create designs with a maximum number of colors.
When your customers upload an image, Zakeke automatically converts it to respect the limit that you've set. They're still able to change the colors, but they can't exceed the number of colors allowed. If they start from a text, the color they choose for the text will be one of the colors of the limited palette.
If they add any other elements, be it an image or text, that element will be converted in the colors already in use on the first element added.
They can use the palette "Colors in use" to still change the colors of the design.
See the video below