Αυτοκόλλητο παραθύρου σπιτιού με παγωμένο γυαλί Διαφανές αδιαφανές μπάνιο Μπάνιο με αντικολλητικό φιλμ Αντιφως αυτοκόλλητα

I can't understand how it sticks. If you need to remove the film (which barely moves away), then it is not sticky at all. What to do with it next? If you don't need to remove the film, then it's my mistake. But then how to stick it?

Haven't glued yet.