no need for programme aslong as u have paint.
Right-click a full-size picture, and select Save
Picture As. Download it to the My Pictures folder in Windows.
Windows will save the picture as a bitmap. Bitmaps don't have enough
compression, so they tend to be large. Size is your enemy on the Web.
Large files take forever to open, especially if the viewer is using a
dial-up connection.
To get around that, open the picture in Paint, a Windows utility,
or another photo program. To find Paint, click Start>>All Programs>>
Accessories>>Paint. Click File>>Open. Navigate to the My Pictures
folder and double-click on the picture file. That will cause it to
open in Paint.
Click File>>Save As. In the "Save as type:" box, select JPEG (*.JPG;
*.JPEG; *.JPE; *.JFIF). That will bring the file's size way down.
If you are scanning pictures for your Web site, set them at 72 dots per
inch. More resolution will not improve their appearance on the Web, and
will increase their size.
hope this helps !