HP Photosmart R707 User Manual page 108

On Macintosh, the process of e-mailing images is not
automatic. After images marked with HP Instant Share
destinations are transferred to your Macintosh, they will be
displayed in the HP Instant Share application. Simply follow the
instructions in the HP Instant Share application to send your
messages and post your images on the web page.
108 HP Photosmart R707 User's Manual