Question: persistent resolution with exiftool -all=

[Joss Brown]

Maybe this is a stupid question. I'm removing metadata with exiftool -all= -filename=bar foo, but on macOS this also converts Retina resolution images (e.g. screenshots) from 144 ppi to 72 ppi, for example 840x280 px @ 144 ppi into 840x280 px @ 72 ppi.

Is this conversion related to the removal of all metadata, which would include resolution info? And is there a way around it, i.e. remove all metadata, but forgo any ppi conversion?

[Phil Harvey]

The resolution information is in the metadata. You can do this if you want:

exiftool -all= -tagsfromfile @ "-all:*resolution*" FILE

• Phil

[Joss Brown]

Worked! Thank you very much!