in Adobe, and use it to drag a border around the image, then release. The image will be copied to the clipboard, where you can then paste it into your image editor, (MSPaint will do). Save that, and send it.
Or, ask the email recipients if they want to download and install the free Adobe Reader, so they can read the whole document. Then they can extract the images as they wish.
I hope this helps.
I have Windows XP, Adobe 7.0, on a Dell 2350 PC. I want to send photos to others via E-mail, but they all say they need them to be in jpeg format and I ony have them in pdf.