Abstract: The present invention relates to a method for installing and adjusting a door seal device on a door leaf for the purpose of sealing off a lower door gap, the door seal device having at least one trigger on the hinge side and/or lock side and the door seal device initially being installed in such a way that the trigger has a greater projection than necessary and the door is then closed, an axial displacement of the trigger with respect to a transmission element connected to the latter occurring as a result of a floor contact pressure of a seal profile that exceeds a reference value, which leads to self-adjustment of the extent of the projection of the trigger, and the trigger then remaining in this adjusted position when the door is reopened.