Lightroom is a popular photo editing software that can be used to create digital photos, albums, and videos. It can be used to edit photos and videos using the menus and tools that are available, or it can be used as a standalone program. There are a few things you need to know before deleting old Lightroom catalogs. First, Lightroom is a software that is designed for personal use. It is not meant for commercial use. Second, Lightroom catalogs can take up a lot of space on your computer. If you delete them, you may have to create new ones from scratch. Third, if you delete old catalogs, you may lose all the data that has been stored in them. Finally, if you delete old catalogs without first backing them up, you may have to start over from scratch when you try to edit or upload photos or videos.