If you are looking for a free solution, here are the correct ways to approach it:
There is no legitimate "free download" for the full version of Quad Remesher. The only official ways to get the software are: 30-Day Free Trial : A fully functional 30-day trial Quad Remesher Blender Addon UPD Free Download
Quad Remesher is a powerful addon for Blender that allows you to easily convert triangulated meshes into clean, quad-based meshes. This addon is a must-have for any 3D modeler, as it saves time and effort by automating the process of retopologizing complex meshes. If you are looking for a free solution,