How to reduce project size?

My project has a lot of unnecessary files. How to reduce its size?

For example:

  1. I have 26 GB .dll and .pdb files in Binaries/Win64 (f.e. UE4Editor-ProjectName-9984.pdb).
  2. Browse.VC.db and Solution.VC.db in project’s .vs directory takes about 1 GB.
  3. The SharedPCH.Engine.ShadowErrors.h.pch file in Intermediate/Build/Win64/… takes 1,3 GB.

Can I delete them? Is any way to reduce my project size?

yes. but it will get regenerated, when you start engine /compile-pack/ use vs.

better specify which part of project? The files you mentioned are auto generated/cache/temp files.

I see that I can delete the .dll and .pdb files from the Binaries/Win64 directory. It saves my disk space.