Hi Dan, yes you can. First use the image selection tool in Acrobat Reader to select whatever portion of the image you want. Once you have selected it, copy the selection to the clipboard. Next, paste the clipboard image into your favorite image editor. Then save the new image as a JPEG file, and manipulate or print however you wish. I recommend not using JPEG though if you have Photoshop or Paintshop Pro. Use their proprietary image formats, they are much more powerful.
Hope this helps,
B.