Open the project you need to embed an image in, or start a new project in Illustrator.
You can import an image by dragging and dropping an image file on to the workspace or using the File > Open menu.
This window will show a list of images used in your Adobe Illustrator document. Select the image you want to embed by clicking on it in this list.
There is a drop-down menu in the Links window that can be accessed in the upper right-hand corner. Open this menu and choose Embed Image(s). Congratulations! The image is now embedded.
Select the embedded image in the Links Window. Open the drop-down menu and choose Unembed.