Perhaps the following from Word 2007 Help is the information you seek:
The Compress Pictures feature automatically reduces the file size of
pictures when you save your document. You can also delete the cropped
parts
of pictures from a file by using this feature.
The Automatically perform basic compression on save option applies only to
the document that is open in the current program. All of the other options
in the Compression Settings dialog box apply to all documents in Office
Excel 2007, Office PowerPoint 2007, Office Word 2007, and Office Outlook
2007.
Select a picture in the document.
Under Picture Tools, on the Format tab, in the Adjust group, click
Compress
Pictures.
Click Options, and then do one or moreof [sic] the following:
To stop automatic reduction of picture file size when you save the
document,
clear the Automatically perform basic compression on save check box.
To automatically delete cropped areas of pictures when you save the
document, select the Delete cropped areas of pictures check box, and then
click OK.
To automatically save cropped areas of pictures, clear the Delete cropped
areas of pictures check box.
Tip To use a shortcut to the compress pictures options in the Save As
dialog box, click the Microsoft Office Button , point to Save As, and then
click the file format for the Office document that you want. In the lower
left corner of the dialog box, click Tools, and then click Compress
Pictures.
HTH |:>)
Bob Jones
[MVP] Office:Mac
When I insert a graphic in a Word 2007 document, and save it as .docx,
the
resolution gets down sampled to about 96 dpi. This does not occur if I
"Insert and Link" the graphic. Why should there be a difference? And
why
down sample the image? This did not occur in Word 2000 or Word 2003.