Hmm,

In Word's Advanced options, I checked the 'do not compress images in this file' option and chose 'High fidelity' as the default resolution.

I then inserted a 7.37Mb image into the document, scaling the image to as large as Word would accept (~31% - it can't save anything to a finished size that is more than 55.88cm wide/high), then saved it. The saved file size was just over 8Mb. Resizing the image had no effect on the file size with subsequent saves, or on the apparent resolution of the embedded image.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]