Huawei P9 photo printing dpi

[AC Question]

Hi,

I am trying to change the settings on my phone to optimize the camera for printing photos.

Although I am taking photos on the highest resolution (12M 3968X2976 4:3) they are only saving as 72dpi.

I am looking to store the photos at 300 dpi.

Anyone have any tips for me? I'm a complete novice to android so apologies if this is a basic question!

Thanks,

Sarah