Your PhotoStructure library contains your image database, library settings, as well as preview images that make viewing your photos and videos instantaneous.

When PhotoStructure encounters errors, it automatically sends a report to our error system, Sentry. These error reports include system information as well as recent log messages to help us determine both what resulted in the error and how to resolve it in the future.

PhotoStructure is designed for million-asset libraries, so you shouldn't need to switch between libraries in most cases. If you want to have a couple separate libraries, though, you certainly can.

Every time you take a digital photo or video, your camera or smartphone records a bunch of information about the image that you just captured.

When PhotoStructure is importing files, it automatically excludes all hidden files, as well as operating system and application support directories.

PhotoStructure’s photo and video deduping, or de-duplication, are a set of heuristics to determine if different files on your computer are actually the same image.

PhotoStructure is designed to be a very safe home for the images of your life. You should consider older hard drives, especially more than 5 years old, as fragile parchment that must be handled with care.

Windows can be persnickety when it comes to network shares, causing processes to “hang” or get stuck. You can run a quick “health check” just by opening the About page (from the System Tray).

On all platforms, when you click the close button on PhotoStructure's main window, PhotoStructure continues to run in the background, which may include processing images and videos.