Adjust image size within mac mail

To adjust the image size within Mac Mail, you can follow these steps:

1. Open Mac Mail and compose a new email or reply to an existing one.
2. Click on the image you want to resize.
3. Go to the "Format" menu and select "Image" > "Size".
4. In the "Image Size" dialog box, you can adjust the width and height of the image by entering new values or using the sliders.
5. You can also choose to scale the image proportionally by checking the box next to "Scale proportionally".
6. Click "OK" to apply the changes.

Alternatively, you can also use the "Size" option in the "Edit" menu to resize the image. To do this:

1. Select the image by clicking on it.
2. Go to the "Edit" menu and select "Size".
3. In the "Size" dialog box, you can adjust the width and height of the image by entering new values or using the sliders.
4. Click "OK" to apply the changes.

Note that if you want to resize an image that is embedded in an email, you may need to use a third-party image editing software, such as Adobe Photoshop or Preview, to resize the image before attaching it to the email.