


Many OS X apps that work with images, such as Preview or Acorn, allow you to select an image and then choose the Share option either from the main menu bar or from the contextual menu. Using the "Share" feature in third-party apps You can add text directly after the image or use Option-Return to add some line returns between the image and your text.You will see a "+" icon as you add the image. Drag the file to the text entry field in Messages.(This also works in iPhoto if you have that app open) This makes it easy to drag the image from one window to another.

ATTACHING PHOTO TO TEXT MESSAGE FOR MAC
Though it is not intuitive, Messages for Mac does allow you to attach on image to an outgoing message. You can send MMS messages when sending out Campaigns and Autoresponders. It also lets you write up to 1,600 characters of text, 1,440 characters more than SMS. MMS allows you to add all kinds of rich media right inside your messages including images, gifs, videos, and audio files. On the Mac, though, this option is not readily apparent, leaving many desktop users scratching their head when they want to add a simple image to a message they are writing. MMS stands for Multimedia Messaging Service. Adding images to an iMessage on your iPhone is easy to do as there is a "camera" icon right next to the message composition field.
