Usar la aplicación APKPure
Obtener Digital image resolution converter versión histórica en Android
Convertir resolución de imagen digital con una de las 4 unidades de Measurment incluido
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.