Download dungeondraft-pack.exe and dungeondraft-unpack.exe from Ryex's GitHub Page.
Download FA_Repack.ps1 from my source files here.
Copy dungeondraft-pack.exe, dungeondraft-unpack.exe, and FA_Repack.ps1 to the folder where you have you Forgotten Adventures dungeondraft_pack files. This will be referred to as your "FA Directory".
You want to make sure you have all of your
dungeondraft_packfiles in the same FA Directory and not in sub-folders.
Open powershell and navigate to the FA Directory and run the following command
./FA_Repacker.ps1 [-Output <output folder>] [-Clean]
Remove the original Forgotten Adventures dungeondraft_pack files?
The path to use when creating the new repacks.
This defaults to the current directory if ommitted.
Make sure you have enough disk space, you need about 2-3 times the total space of all dungeondraft_pack files available during the repacking operations.