I am using plugins called Advanced Custom Fields (ACF) and WooCommerce. I want to create a text and image field for WooCommerce product variation. I created fields in ACF and as
As far as I know the Advanced Custom Fields plugin only allows you to add custom fields for editors. These fields cannot be used to build the front-end except by putting hands in the code.
If you want to add custom fields for your products (so the customers can do some personalization), you have to use another plugin. I personally use WC Fields Factory, it let you define additional data for your products, like size, color, image, etc. Just use the new Field Factory menu.
Of course there should be other ones I haven't tried.