Yes, apple pastila is ready to eat. It comes as soft, chewy pieces and does not need any preparation, baking or soaking. You can eat it directly from the package as a small snack between meals.
The product description suggests several typical occasions: sharing with family, offering to guests, packing into a work bag, keeping on hand as a softer fruit-based alternative to sweets, and serving with tea. Because it is a dried fruit confectionery, it is practical for situations where fresh fruit is not convenient, such as travel or a desk drawer at work. It also pairs well with unsweetened tea or coffee, as its natural sweetness balances bitter drinks.
Since this is an assortment, you may find different variants in the same package. That makes it easy to offer a small plate with a few different pieces so people can taste the variety. If you are serving it to children, keep in mind that it is still a sweet product and should be given in reasonable portions, just like any other confectionery.
There is no need to cut it unless you prefer smaller pieces, but if the pastila is very soft, a knife may help to portion it neatly for a tea table.