AFAIK, this is not just about PNG images. It happens with all other output formats as well. See https://bugs.launchpad.net/simple-scan/+bug/842076 which I reported back in 2011(!!!).
AFAIK, this is not just about PNG images. It happens with all other output formats as well. See https:/ /bugs.launchpad .net/simple- scan/+bug/ 842076 which I reported back in 2011(!!!).