With exiftool I could not edit some tags like the result after when I put this line
exiftool logo.jpg -"Photoshop Quality"=""
I get this message
Warning: Sorry, Photoshop is not writable Nothing to do.
My question . why ? how can i fix this problem ? . also I tried this line
exiftool logo.jpg -all=""
all of tags are removed exception of some like . . . .
- File Size
- File Type
So at the first did not edit . But in the second code worked ?