

If you frequently work with large Photoshop projects, this means the files can be big in both size and number. Unfortunately, Photoshop is kind of crappy at file management, and the temp files can often stick around after the program is closed. The files are supposed to be deleted automatically when you close Photoshop. These files serve two purposes: they allow Photoshop to operate without relying exclusively on RAM, and they create a de facto backup file in case the program-or your computer-crashes.

So Photoshop saves a lot of your work to local “scratch” files. Photoshop is a program that works with a lot of data at once, and not all of that data can be kept in your computer’s memory alone.
