ACDSee relies on storing information in a database to enhance performance and preserve organizational data. ACDSee adds this information to the database when it catalogs your files. This cataloging occurs automatically as you browse from folder to folder.

In order to improve performance while browsing folders you can choose to Catalog your files now. If you have a large photo collection, cataloging can take a while.

You can catalog a set of files at any time by going to Tools | Database | Catalog Files.