If you're using Microsoft Outlook Classic
- Select the photos you'd like to resize.
- Right-click and select "Show More Options".
- Select "Send To".
- Select "Mail Recipient".
- Select what size you'd like the photos to be; Smaller, Small, Medium, Large, or Original Size.
- Click the "Attach" button.
This will attach the photos to an email, ready to be sent.
- Right-click one of the attached photos and select "Select All"
- Copy and paste where you'd like to save the new resized photos
All done!!!