Make an eraser

[quote=115475:@Rick Araujo]You must be talking about anti-aliasing in the borders.
First thing, you must think in your erase routine. It must paint white in both canvas and mask to avoid some ghost effects of old images left in the canvas. The anti-alias will occur in the mask generating levels of gray that will reflect as levels of transparency in the border. I don’t imagine final bad effects.[/quote]
I think painting with the eraser into both the mask and the canvas worked for erasing properely but then text won’t appear correctly when it is drawn over the canvas. It seems to show up very faintly.

Thanks