1. Open the photo using the IrfanView program.
Start -> All Program -> Multimedia ->Image ->IrfanView
2. Hit the F key to make it “Fit” on the screen. This is only for viewing, you haven’t actually resized the photo.
3. Select Image -> Resize/Resample form the menu
4. Choose the standard dimension for the web, wich is 640 X 480 and click OK.