Possibly a simpler solution....
Assuming you have had cpg create intermediate images all along at the size you want - continue to do so.
Use admin tools to 'delete original size photos'
this will delete the full size, and rename the normal_ file to ori...
Assuming you have had cpg create intermediate images all along at the size you want - continue to do so.
Use admin tools to 'delete original size photos'
this will delete the full size, and rename the normal_ file to ori...