Drag a stack of files into the box, or click to pick. Each file lands in the private Storage bucket and is then served via the /secure/ gate. Files up to 32 MB use the direct path; larger files (any size, multi-GB OK) use a signed PUT URL straight to Cloud Storage.
Library/uploads/<today>. Override to land files directly under a product folder, e.g. Library/04-Products/A100/primary. Leading slash and ".." are rejected.