I just use the paint program that came with my pc. I can size them down, my dilemma was not knowing how small they had to be for TCS. So I open the picture I want in paint, then go to image, click on stretch/skew, adjust the % down a little bit at a time until the photo looks as if it would be the size of a 4x6 print, then save it (I always save it as whatever the pic is called with a B at the end, so I have it saved large & small) then I upload them to my photo bucket acct, then copy & paste the image code. And I am so NOT technologically inclined!!! It took me 2 mos to figure this out!