Consolidate photo libraries keeping album organisation

Most of us use the trusted 3rd party app PowerPhotos ($30) to handle multiple Libraries and copy stuff from one to the other. Photos will copy pictures to other Libraries, but it loses the organization. PowerPhotos will copy pictures and maintain the album and folder structure.

The only other way to keep the albums and folders and keywords when merging the libraries without buying a third party app is to merge them in iCloud.

Sync both libraries with iCloud Photos in turn. iCloud will merge them and solve conflicts between duplicates. it would be useful, if you are already using iCloud Photos. But Power Photos will be faster. And useful in future, if you want to split your library again and archive partial libraries on external drives.

You're welcome!