I imported an image created in Word and embedded it in Illustrator CS3. I tried to erase a portion of the image by activating the erase function, left clicked and erased while holding down the left mouse button. The portion of the image disappears but reappears when I take my finger off the left click button. Why is it restoring the erased portion? Thank you!
You are using the wrong program. AI's eraser works on vector shapes, not pixel data. You will have to use Photoshop. Otherwise you would trace the image to produce a clipping mask.