@mk @andstatus also, I now have both the original image and the reduced version in /storage/sdcard0/ReducePhotoSize/.nomedia - this appears only after successfully 'picking up' the image with Mustard; after using the same ReducePhotoSize process from AndStatus nothing ever appears in this directory. My only conclusion can be that AndStatus does not actually 'pick up' the image provided by ReducePhotoSize and the latter then discards it.