[raffles123]

If you are using a Mac, resizing photos is easy, although maybe not if you have an older operating system. I have System 10.5.

Open your photo using the Preview application that comes with the system. In the Menu bar under "Tools" go down to where it says "Adjust Size". That will show you the size of your photo and allow you to change it. Usually it's the height you will want to manipulate. You can either make it bigger or smaller. If you try to make it too big though, you lose quality, so if I am trying to make two pics the same size, I generally reduce the size of the larger one until it matches the smaller.

You can also reduce the size by using the "Crop" feature, also found under the "Tools" menu, and removing parts of the pic that you didn't need anyway.