Everyone is being so helpful But I'm not real bright So..

Right now I have a 4000 x 3000 image (or is that reversed?). The setting for the file on GIMP is at 72 *PPI*.

I can't figure out the "export" thing, so I've been doing the "Select all" - > "Copy visible" thing, pasting it into paint, and saving as a .jpg.

But it worked until I went from 3000 x 3000 to 4000 x 3000. Then, I tried to upload that picture, and it said it was too big (6 point something mb where we can only do 4 point something...)

So I resized the image to about 85% (I tried more, but it didn't work till 85) and the forums accepted it, but the picture looked AWFUL.

If I open a new image and set it to, say, 300 PPI, and copied everything over to that image, would that A) Change the file size? and B) Make the picture look better if I *do* have to resize it?

Or... I don't know. How to make my picture pretty again? ;_;

What I'm trying to figure out is how to post the picture the way it's saved on GIMP