Resize Textures

HI Guys :rolleyes:
My Unreal Engine 4 Project has folder contains alot of textures, all textures sizes 2048 x 2048 but i found these textures make my final package very large size, my question here:

How can re-size or compress these textures inside UE4 without re-import them again ?

Regards :rolleyes:

Are they all going to be the same size? I don’t know if there is a way to do it inside of UE4 but running a simple photoshop action to resize them would be fairly simple. Something like this.

Photoshop Actions are pretty simple. Running this with a percent rather than a set size would probably help as well.