Preview Container
This folder stores Preview’s sandboxed app data, preferences, and working files for the built-in macOS PDF and image viewer.
What is Preview Container?
The folder ~/Library/Containers/com.apple.Preview is Preview’s sandbox container on macOS. Preview uses it to store app-specific data that belongs inside its sandbox, which can include settings, temporary working data, saved state, and other files needed while opening or editing PDFs and images.
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Safety overview
Status: Mostly safe
This is user-level app data for Apple Preview, not a standalone program or malware indicator by itself. Removing it may reset Preview-related data in your account and could affect unsaved state, recent work context, or app-specific settings.
Recommendation: Keep it if you use Preview regularly. If you no longer need Preview data for your account and the app is closed, this folder is usually not essential to keep, but review its contents carefully because deleting it may remove preferences or working data.
File path
~/Library/Containers/com.apple.Preview
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