Try posting any picture you have on your hard drive which is slightly less than 256kb and then use the "Powertoy image resizer" to resize it to a couple of different but smaller sizes.
Then use the powertoy to do a "custom resize" to any size you want say to make an avatar..
NOTE: if you start with a pic that is only 15.k to begin with and you try to resize up it could become grainy and out of focus.
If you start with a pic that is 536k or something similar and resize it to any size smaller. it should be fine. See what happens!
Don't give up! in a month you will wonder what the big problem was! :lol:
OTBS # 14
I took your 15k pic; saved it to my hard drive; and then used the "Powertoy" to resize your pic to 120 X 120. the power toy changed it to 117 x 120 on its own
If you hover your cursor over any image and right click on it a drop down menu will open up; scroll down until you see "Properties" then left click on properties and a window will open showing you a detail or two about the image you are working with.