"Save preview image with document"

The General page of the Document Properties dialog has a checkbox
labelled "Save preview image with this document". What is a preview
image in this context? Why would a user choose to turn it on or off?
Thank you!

--Jean

If we uncheck it, there will be no Thumbnails/thumbnail.png inside the saved file.
I assumed this would have affected the Start center previews, but they seem to work fine without the thumbnail.
I guess any file manager can make use of the thumbnails.

Ilmari

Howdy,

IIRC Thumbnails replace icons only when Medium, Large or Extra Large icons
are selected under MS Windows 10 (and maybe 7 also) Explorer.

Best wishes,

Drew