Thank you for your comments.
1. I have allowed the "program" to resize the canvas. Also, tried re-sizing canvas manually...neither works.
2. When I re-sizing the ad, I'm doing it from within MS Publisher. Then select all, copy...then pasting into paint.net.
Tried another one this morning (1 that did not work yesterday). The box w/descriptive info & boarder around it, right side did not get cut off today. However, box w/boarder @ bottom...its bottom boarder is cut off.
Any other suggestions....I am stymied!
A