What is difference between managed images and referenced images and which way is better for me to more easily manage photos?
- Managed means, that the original image files that you import into Aperture will be stored inside the Aperture library package. Aperture manages them. This way you cannot accidentally delete or change them using the Finder.
- Referenced means, that the original images are stored in their original location or relocated to a folder outside the library. Then you will be responsible for taking care of them. Aperture will reference the files, but not add them to the library.
While you are still exploring Aperture and your Aperture Library fits easily on your system drive, managed is better. The library is one package and the original images are protected.
When the library gets large and you are running out of space, referencing the original files will allow you to move the bulk of the data to external drives, and thus reduce the size of the library. You select "Managed" or "referenced" in the "Import" panel. This is determined by the "Store Files" pop-up menu. If you select "In the Aperture Library" you are importing "Managed", else referenced.