From Layer > Layer Style > Drop Shadow.
try GIMP its free
There is a really good picture editing site called Photoshop. I would use Photoshop for all of my editing also they will give you a free 30 day trial and i would try it out.
In Word, right click on the picture, select "Save as," and give it a name and save it to the location of your choice. Then inside Photoshop, click on "Open" from the "File" menu, locate and select your file, then click on "Open."
PHOTOSHOP
Photoshop is picture editor,what you mean?good picture editor?best free picture editors are GIMP and Picasa,i recommend to you Picasa
from filter menu
no
Adobe Photoshop CS5
You can use photoshop or another picture editing program to digitally edit the picture.
Adobe Photoshop CS5
Photoshop can do this
Open Photoshop, open your picture in Photoshop from File>Open, then start making changes. Of course if you are unfamiliar with Photoshop, you may want to learn the basics first.