How To Resize Image In Mac Mail. Once you have dragged an image in to mail there is an image size option in the bottom right hand corner actual size large medium small. How to compress an image in the preview app.
Continue clicking to keep rotating. Go to the preview menu and select file. This will open the image in preview.
You can resize or rotate an image.
Open image in preview. Continue clicking to keep rotating. This method is actually a very easy thing to do. One old school way for you to be able to resize the image that you want is to crop it.