I deal with BMPs exclusively. When I select and move parts of the image it leaves a checkerboard area uncovered where the selection is moved from. It gets difficult to evaluate the spatial balance of design elements with various areas of checkerboard showing through, so I have to close and reopen the file often to get rid of the checkerboard. Sometimes after reopening, the image contains black area where some of the checkerboard was (I think it has to do with moving a selection that already contains checkerboard, apparently resulting in a ‘black-hole’). This can be time consuming and problematic to correct.
The only way I’ve found to get around this hassle is to add a layer, move it to the bottom, merge, and save as a bmp.
Am I doing something wrong or is there an easier way to avoid this phenomenon? Thanks.
