Use APKPure App
Get Digital image resolution converter old version APK for Android
Konvertieren digitaler Bildauflösung mit einem der 4 Einheiten enthalten Measurment
Use this useful tool to convert digital image resolution choosing one of the 4 units of measurment included in this app (with the availability to add custom units), that are:
dot/meter, dot/millimeter, pixel/inch, dot/inch.