All you have to do is to load the picture,click on the image tab. Go down and click on the Resize/resample selection on the drop down menu.Set the width to alesser value. Resave the image with a new name and check it's size. If it's over 100k shrink it again if you are posting it. Posted pictures should have a width of no more than 600 pixels or they won't fit properly. If you're shrinking it down for an avatar cut the pixel size down to no more than 130 by 130.OK I'm being pretty dumb I downloaded this as suggested but still can't shrink pics small enough to post unless you need a magnifying glass to see them. Obviously I'm missing something